Evidence map›Paper›PMID 19640308›Full record

ArticleBMC cancer2009

Citrus auraptene suppresses cyclin D1 and significantly delays N-methyl nitrosourea induced mammary carcinogenesis in female Sprague-Dawley rats.

Prasad Krishnan, Karen J Yan, David Windler, Jesse Tubbs, Robert Grand, Benjamin D L Li, C Marcelo Aldaz, Jerry McLarty, Heather E Kleiner-Hancock

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 8% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. A Review of Auraptene as an Anticancer Agent.Frontiers in pharmacology · 2021
    Review
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  11. Review
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  18. Radiation Response of Human Leukemia/Lymphoma Cells was Improved by 7-Geranyloxycoumarin.Dose-response : a publication of International Hormesis Society
    Article
  19. 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

9 authors at 4 institutions in 1 country.

Prasad KrishnanDepartment of Pharmacology, Toxicology and Neuroscience, LSUHSC-Shreveport, Louisiana, USA. hklein@lsuhsc.edu
Karen J Yan
David Windler
Jesse Tubbs
Robert Grand
Benjamin D L Li
C Marcelo Aldaz
Jerry McLarty
Heather E Kleiner-Hancock
Breast Cancer Research Foundation · USLouisiana State University Health Sciences Center Shreveport · USLouisiana State University Health Sciences Center New Orleans · USThe University of Texas MD Anderson Cancer Center · US

Funding

Effects of natural coumarins on mammary carcinogenesisK22CA102005 · NCI · LOUISIANA STATE UNIV HSC SHREVEPORT · PI KLEINER-HANCOCK, HEATHER E · 2005 to 2007
$465k
NCI NIH HHS 1K22CA102005-01A2
6 · The paper itself

Abstract

backgroundBreast cancer is a major problem in the United States leading to tens of thousands of deaths each year. Although citrus auraptene suppresses cancer in numerous rodent models, its role in breast cancer prevention previously has not been reported. Thus, our goal was to determine the anticarcinogenic effects of auraptene against breast cancer.

methodsThe effects of auraptene on cell proliferation of MCF-7 and MDA-MB-231 human breast carcinoma cells in culture was assessed by measuring metabolism of a substrate to a formazan dye. Dietary effects of auraptene on tumor incidence, multiplicity and latency were studied in the N-methyl nitrosourea (MNU) induced mammary carcinogenesis model in female Sprague Dawley rats. The concentration of auraptene in rat tissues was analyzed by reverse phase HPLC. Cyclin D1 expression in MCF-7 cells and rat tumors was measured by western blot.

resultsAuraptene (500 ppm) significantly delayed median time to tumor by 39 days compared to the MNU only group (p < 0.05, n = 24-26). Auraptene (10 microM) reduced Insulin like Growth Factor-1 (IGF-1, 10 ng/mL)-induced cyclin D1 expression by 40% in MCF-7 cells. In comparison, western blot analysis of rat mammary tumors (n = 10 per group) confirmed that auraptene (500 ppm) significantly reduced (p < 0.05) cyclin D1 expression by 49% compared to the MNU only group. Analysis of rat mammary tissue extract by HPLC with fluorescence detection indicated an average concentration (means +/- S.E.) of 1.4 +/- 0.5 microM and 1.8 +/- 0.3 microM in the normal mammary glands of the auraptene 200 ppm and 500 ppm groups, respectively. The concentration (means +/- S.E.) of auraptene in the mammary tumors of the auraptene 200 ppm group was 0.31 +/- 0.98 microM.

conclusionOverall, these observations suggest that the predominant effect of auraptene was to delay the development of tumors possibly through the suppression of cyclin D1 expression. These results point to the potential chemopreventive effects of auraptene in mammary carcinogenesis.

Indexed as

AnimalsAnticarcinogenic AgentsCell Line, TumorCell ProliferationChromatography, High Pressure LiquidCitrusColoring AgentsCoumarinsCyclin D1FemaleFormazansHumansMethylnitrosoureaRatsRats, Sprague-DawleyAnticarcinogenic AgentsauraptenColoring AgentsCoumarinsCyclin D1FormazansMethylnitrosourea

Identifiers

PMID19640308
PMCPMC2724550
OpenAlexW2114852020

What OpenQuestion holds

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LicenceCC BY
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.