Evidence map›Paper›PMID 20162321›Full record

ArticleInvestigational new drugs2011

Anticancer activity and mode of action of titanocene C.

Ulrike Olszewski, James Claffey, Megan Hogan, Matthias Tacke, Robert Zeillinger, Patrick J Bednarski, Gerhard Hamilton

Abstract read
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In one paragraph

Article in Investigational new drugs, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

9 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Review
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  9. DNA molecular recognition and cellular selectivity of anticancer metal(II) complexes of ethylenediaminediacetate and phenanthroline: multiple targets.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2012
    Article
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

7 authors at 4 institutions in 3 countries.

Ulrike OlszewskiLudwig Boltzmann Cluster of Translational Oncology, c/o Balderichgasse 26/13, A-1170, Vienna, Austria.
James Claffey
Megan Hogan
Matthias Tacke
Robert Zeillinger
Patrick J Bednarski
Gerhard Hamilton
University College Dublin · IELudwig Boltzmann für Klinische Neurobiologie · ATLudwig Boltzmann Cluster for Cardiovascular Research · ATUniversität Greifswald · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Titanocenes constitute a class of metal-based anticancer agents that seem to display a mode of action distinct from that of platinum complexes and to be more tolerable with a differing spectrum of activity. In the present study, titanocene C (bis-(N,N-dimethylamino-2(N-methylpyrrolyl)-methyl-cyclopentadienyl) titanium(IV) dichloride) was shown to exhibit antiproliferative activity against human tumor cell lines with a mean IC₅₀ value of 48.3 ± 32.5 µM. In particular, high activity was found against small cell lung cancer (SCLC) cell lines with a profile different from cisplatin. Titanocene C induced cell cycle arrest at the G1/0-S interphase. Cross-resistance to either cisplatin or oxoplatin, respectively, was low for titanocene C and absent for titanocene Y in variant HL-60 cell lines. Alterations in gene expression of NCI-H526 SCLC cells induced by titanocene C were investigated using genome-wide expression arrays. Downregulation was found for genes coding for topoisomerases I and IIα, histones of the HIST1H4 cluster, enzymes involved in glycolysis, components of the cytoskeleton and vesicular transport, among others. In contrast, expression of genes involved in apoptosis, stress response, particularly members of the metallothionein gene cluster 1, DNA damage and growth factors was upregulated following exposure to titanocene C. Approximately 50% of those genes downregulated by titanocene C and cisplatin were concordant, including the previously identified markers of cisplatin-sensitivity, tubulin and stathmin, indicating partial overlap of the pathways affected by these metal complexes. The present findings point helicases/topoisomerases and HIST1H4 core histones out as targets of titanocene C and metallothioneins as putative main effectors of drug resistance.

Indexed as

Antineoplastic AgentsCell CycleCell Line, TumorCell ProliferationDown-RegulationDrug Resistance, NeoplasmDrug Screening Assays, AntitumorGene Expression ProfilingGene Expression Regulation, NeoplasticGenome, HumanHumansOrganometallic CompoundsPlatinumUp-RegulationAntineoplastic Agentsbis-N,N-dimethylamino-2-(N-methylpyrrolyl)methyl cyclopentadienyl titanium (IV)Organometallic CompoundsPlatinum

Identifiers

PMID20162321
OpenAlexW2008636829

What OpenQuestion holds

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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.