Evidence map›Paper›PMID 18301893›Full record

ArticleCancer chemotherapy and pharmacology2008

In vitro and in vivo effects of the conformationally restricted polyamine analogue CGC-11047 on small cell and non-small cell lung cancer cells.

Amy Hacker, Laurence J Marton, Michelle Sobolewski, Robert A Casero

Open access · greenAbstract readComparative Study
In one paragraph

Article in Cancer chemotherapy and pharmacology, 2008. 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
2.3field-weighted citation impact, top 12% 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

27 citing papers in PubMed, 45 citations in OpenAlex.

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  20. Current status of the polyamine research field.Methods in molecular biology (Clifton, N.J.) · 2011
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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

4 authors at 1 institution in 1 country.

Amy HackerThe Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA.
Laurence J Marton
Michelle Sobolewski
Robert A Casero
Johns Hopkins University · US

Funding

Spermine N1-Acetylase Induction in Lung CancersR01CA051085 · NCI · JOHNS HOPKINS UNIVERSITY · PI CASERO, ROBERT A. · 1990 to 2013
$4.7M
The Role of Polyamine Oxidase in Antitumor Drug ResponseR01CA098454 · NCI · JOHNS HOPKINS UNIVERSITY · PI CASERO, ROBERT A. · 2003 to 2013
$2.9M
NCI NIH HHS CA051085NCI NIH HHS CA098454NCI NIH HHS R01 CA051085NCI NIH HHS R01 CA098454
6 · The paper itself

Abstract

purposePolyamines are essential for normal growth; however, the requirement for, and the metabolism of, polyamines are frequently dysregulated in cancer. Polyamine analogues have demonstrated promising preclinical results in multiple model systems of cancer, but their clinical utility has been limited by apparent toxicity. A representative compound of a new generation of short chain, conformationally restricted polyamine analogues, CGC-11047 has been synthesized and ongoing phase I clinical trials indicate it to be well tolerated at weekly doses of 610 mg (dose escalation is still in progress). Therefore, studies were designed to gain a better understanding of its effects on cellular polyamine biochemistry and efficacy in the treatment of human lung cancer models in vitro and in vivo.

methodsHuman lung cancers cell lines representing non-small cell and small cell lung cancers were investigated for their growth and biochemical response to CGC-11047. Effects of in vitro treatment with CGC-11047 on cell growth, the activity of the polyamine biosynthetic enzyme ornithine decarboxylase (ODC), and the expression and activity of the polyamine catabolic enzymes spermidine/spermine N(1)-acetyltransferase (SSAT) and spermine oxides (SMO) were measured. Additionally, the overall effects on intracellular polyamine pools were monitored. Finally, the in vivo efficacy of CGC-11047 in the treatment of a nude mouse model of human non-small cell lung cancer was evaluated.

resultsCGC-11047 effectively inhibited the growth of both small cell and non-small cell lung cancer cells in vitro. The greatest biochemical effects were observed in the non-small cell lung cancer cells where in addition to a profound down regulation of ODC activity, there was a significant increase in polyamine catabolism leading to a greater degree of polyamine pool depletion and greater accumulation of CGC-11047 when compared with the changes observed for the small cell lines. Importantly, CGC-11047 was found to be highly significant (P < 0.0001) in delaying the progression of established tumors in an in vivo model of human non-small cell lung cancer.

conclusionCGC-11047 represents a promising new polyamine analogue that warrants further preclinical and, potentially, clinical evaluation in lung cancer.

Indexed as

AnimalsCarcinoma, Non-Small-Cell LungCarcinoma, Small CellCell Line, TumorFemaleHumansIn Vitro TechniquesLung NeoplasmsMiceMice, NudeMolecular ConformationPolyaminesRandom AllocationStructure-Activity RelationshipXenograft Model Antitumor AssaysCGC 11047Polyamines

Identifiers

PMID18301893
PMCPMC3634589
OpenAlexW2073683178

What OpenQuestion holds

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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.