Evidence map›Paper›PMID 19133980›Full record

ArticleBritish journal of haematology2009

Glucocorticoid resistance in a multiple myeloma cell line is regulated by a transcription elongation block in the glucocorticoid receptor gene (NR3C1).

Beatriz Sánchez-Vega, Varsha Gandhi

Open access · bronzeAbstract read
In one paragraph

Article in British journal of haematology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 24% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
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  11. Functional polymorphisms inOncotarget · 2017
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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

2 authors at 1 institution in 1 country.

Beatriz Sánchez-VegaDepartment of Experimental Therapeutics, University of Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA.
Varsha Gandhi
The University of Texas MD Anderson Cancer Center · US

Funding

Adenosine Analogs: Therapeutics for Hematologic CancersR01CA085915 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI ROSEN, STEVEN TERRY · 2000 to 2009
$2.8M
NCI NIH HHS CA85915NCI NIH HHS R01 CA085915
6 · The paper itself

Abstract

Glucocorticoid (GC) effects are mediated by the glucocorticoid receptor (GR). Several studies have demonstrated that a lower number of receptors per cell were associated with poor GC response. The regulation of GR expression is complex; the levels of GR can be autologously regulated by its ligand and also by transcriptional, post-transcriptional and post-translational mechanisms. Using three human myeloma cell lines that parallel the development of GC resistance, this work describes the mechanism involved in the downregulation of GR expression. The decreased expression was neither due to mutations in the gene encoding GR, NR3C1, nor due to methylation of the promoters. A gradual decrease in NR3C1 transcripts was seen during the development of resistance, the level of expression of exon 1 to 2 RNA fragments remained the same in sensitive and resistant cell lines but a chromatin immunoprecipitation assay demonstrated that RNA polymerase II, detectable throughout exon 2 to 3 in the sensitive cells, was undetectable on exon 3 in the resistant variant, suggesting lower or no transcription at this site. These studies demonstrated that downregulation of NR3C1 mRNA in a resistant cell line involves a block to transcriptional elongation within intron B of NR3C1. This block may represent an important element in the regulation of GR expression.

Indexed as

Down-RegulationMutationPromoter Regions, GeneticBase SequenceCell LineChromatin ImmunoprecipitationDNA Mutational AnalysisDrug Resistance, NeoplasmGlucocorticoidsHumansIntronsMolecular Sequence DataMultiple MyelomaReceptors, GlucocorticoidReverse Transcriptase Polymerase Chain ReactionTranscription, GeneticGlucocorticoidsNR3C1 protein, humanReceptors, Glucocorticoid

Identifiers

PMID19133980
PMCPMC4303606
OpenAlexW2013977404

What OpenQuestion holds

Textmetadata
LicenceTDM
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.