Evidence map›Paper›PMID 15156193›Full record

ArticleOncogene2004

Androgen receptor level controlled by a suppressor complex lost in an androgen-independent prostate cancer cell line.

Long G Wang, Liliana Ossowski, Anna C Ferrari

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Oncogene, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

18 citing papers in PubMed, 51 citations in OpenAlex.

  1. Review
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  10. Regulation of HMGA1 expression by microRNA-296 affects prostate cancer growth and invasion.Clinical cancer research : an official journal of the American Association for Cancer Research · 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

3 authors at 1 institution in 1 country.

Long G WangDepartment of Medicine, Division of Hematology/Oncology, Mount Sinai School of Medicine, Box 1129, 1 Gustave Levy Place, New York, NY 10029, USA.
Liliana Ossowski
Anna C Ferrari
Icahn School of Medicine at Mount Sinai · US

Funding

FACTORS INVOLVED IN MALIGNANT BEHAVIOR OF HUMAN TUMORSR01CA040758 · NCI · ROCKEFELLER UNIVERSITY · PI OSSOWSKI, LILIANA · 1985 to 2007
$2.6M
KLF6 Gene and Clinical Correlates in Prostate CancerR01CA098135 · NCI · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI FERRARI, ANNA C · 2003 to 2005
$1.0M
NCI NIH HHS CA-40758NCI NIH HHS CA9813501
6 · The paper itself

Abstract

Androgen receptor (AR) overexpression is one of the characteristics of prostate cancer (PC) that progresses to hormone independence. An androgen-independent (AI) derivative, with much higher AR-mRNA and protein levels than the parental LNCaP cell line, whose proliferation was androgen dependent (AD), was used to explore the mechanism of AR overexpression. We found that a suppressor element (ARS), previously identified in mouse AR and located in the 5'-untranslated region of human AR gene, malfunctions in AI cells. Transfection of constructs that included ARS element into AD cells reduced the transactivating activities of both AR promoter and a heterologous SV40 promoter. The deletion of ARS resulted in an eightfold increase in AR-promoter activity in AD cells, but had no effect in AI cells. Moreover, the nuclear extracts of AD cells contained proteins that produced a specific, ARS-binding complex, while this complex appeared to have been lost from AI cells. Most importantly, treatment of AI cells with a demethylating agent or histone deacetylase inhibitors restored the lost ARS-binding complex. The restoration of the complex coincided with a reduced expression of AR-mRNA and protein and a reduced rate of AR-gene transcription, determined by nuclear run-on experiment. Thus, epigenetic transcriptional silencing of the suppressor protein(s) may be responsible for AR overexpression in AI cells, and its reversal in hormone-independent PC may normalize AR levels and restore their hormone dependence.

Indexed as

Gene Expression Regulation, NeoplasticGenes, Tumor Suppressor5' Untranslated RegionsCarcinomaCell DivisionCell Line, TumorCell NucleusEnzyme InhibitorsGene DeletionGene SilencingGenes, ReporterHumansHydroxamic AcidsLuciferasesMalePromoter Regions, Genetic5' Untranslated RegionsEnzyme InhibitorsHydroxamic AcidsLuciferasesProteinsReceptors, AndrogenRNA, Messengertrichostatin A

Identifiers

PMID15156193
OpenAlexW2138885835

What OpenQuestion holds

Textmetadata
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.