Evidence map›Paper›PMID 26487635›Full record

ArticleNucleic acids research2015

Direct evidence of mitochondrial G-quadruplex DNA by using fluorescent anti-cancer agents.

Wei-Chun Huang, Ting-Yuan Tseng, Ying-Ting Chen, Cheng-Chung Chang, Zi-Fu Wang, Chiung-Lin Wang, Tsu-Ning Hsu, Pei-Tzu Li, Chin-Tin Chen, Jing-Jer Lin and 2 more

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
6.0field-weighted citation impact, top 3% 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

58 citing papers in PubMed, 131 citations in OpenAlex.

  1. Article
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  5. Review
  6. Article
  7. G-quadruplex propensity inNAR genomics and bioinformatics · 2024
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  16. Spectroscopic Characterization of Mitochondrial G-Quadruplexes.International journal of molecular sciences · 2022
    Article
  17. Article
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  20. 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

12 authors at 4 institutions in 1 country.

Wei-Chun HuangInstitute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan.
Ting-Yuan TsengInstitute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan.
Ying-Ting ChenInstitute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan.
Cheng-Chung ChangInstitute of Biomedical Engineering, National Chung-Hsing University, Taichung 40227, Taiwan.
Zi-Fu WangInstitute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan.
Chiung-Lin WangInstitute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan.
Tsu-Ning HsuInstitute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan Department of Agricultural Chemistry, National Taiwan University, Taipei 10617, Taiwan.
Pei-Tzu LiDepartment of Biochemical Science and Technology, National Taiwan University, Taipei 10617, Taiwan.
Chin-Tin ChenDepartment of Biochemical Science and Technology, National Taiwan University, Taipei 10617, Taiwan.
Jing-Jer LinInstitute of Biochemistry and Molecular Biology, National Taiwan University College of Medicine, Taipei 10051, Taiwan.
Pei-Jen LouDepartment of Otolaryngology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei 10051, Taiwan.
Ta-Chau ChangInstitute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan tcchang@po.iams.sinica.edu.tw.
Institute of Atomic and Molecular Sciences, Academia Sinica · TWNational Taiwan University · TWNational Chung Hsing University · TWNational Taiwan University Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

G-quadruplex (G4) is a promising target for anti-cancer treatment. In this paper, we provide the first evidence supporting the presence of G4 in the mitochondrial DNA (mtDNA) of live cells. The molecular engineering of a fluorescent G4 ligand, 3,6-bis(1-methyl-4-vinylpyridinium) carbazole diiodide (BMVC), can change its major cellular localization from the nucleus to the mitochondria in cancer cells, while remaining primarily in the cytoplasm of normal cells. A number of BMVC derivatives with sufficient mitochondrial uptake can induce cancer cell death without damaging normal cells. Fluorescence studies of these anti-cancer agents in live cells and in isolated mitochondria from HeLa cells have demonstrated that their major target is mtDNA. In this study, we use fluorescence lifetime imaging microscopy to verify the existence of mtDNA G4s in live cells. Bioactivity studies indicate that interactions between these anti-cancer agents and mtDNA G4 can suppress mitochondrial gene expression. This work underlines the importance of fluorescence in the monitoring of drug-target interactions in cells and illustrates the emerging development of drugs in which mtDNA G4 is the primary target.

Indexed as

G-QuadruplexesAnimalsAntineoplastic AgentsCarbazolesCell LineDNA, MitochondrialFluorescent DyesHeLa CellsHumansMice, Inbred BALB CMicroscopy, FluorescencePyridinium Compounds3,6-bis(1-methyl-2-vinylpyridinium)carbazoleAntineoplastic AgentsCarbazolesDNA, MitochondrialFluorescent Dyeso-BMVC-12C-PPyridinium Compounds

Identifiers

PMID26487635
PMCPMC4666356
OpenAlexW1789563956

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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.