Evidence map›Paper›PMID 19220876›Full record

ArticleBMC biology2009

Indexing TNF-alpha gene expression using a gene-targeted reporter cell line.

Ziying Yan, Diana Lei-Butters, John F Engelhardt, Gregory H Leno

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
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

2 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Review
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.

Ziying YanDepartment of Anatomy and Cell Biology, Carver College of Medicine, University of Iowa, Iowa City, IA, USA. ziying-yan@uiowa.edu
Diana Lei-Butters
John F Engelhardt
Gregory H Leno
University of Iowa · US

Funding

Vector Core-Core 2P30DK054759 · NIDDK · UNIVERSITY OF IOWA · PI Alejandro Antonio Pezzulo · 1998 to 2026
$30.5M
Redox Mechanisms of Ischemia Reperfusion Injury in the LiverR01DK051315 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI ENGELHARDT, JOHN F · 1996 to 2013
$2.7M
NIDDK NIH HHS P30 DK054759NIDDK NIH HHS R01 DK051315NIDDK NIH HHS R01-DK51315
6 · The paper itself

Abstract

backgroundCurrent cell-based drug screening technologies utilize randomly integrated reporter genes to index transcriptional activity of an endogenous gene of interest. In this context, reporter expression is controlled by known genetic elements that may only partially capture gene regulation and by unknown features of chromatin specific to the integration site. As an alternative technology, we applied highly efficient gene-targeting with recombinant adeno-associated virus to precisely integrate a luciferase reporter gene into exon 1 of the HeLa cell tumor necrosis factor-alpha (TNF-alpha) gene. Drugs known to induce TNF-alpha expression were then used to compare the authenticity of gene-targeted and randomly integrated transcriptional reporters.

resultsTNF-alpha-targeted reporter activity reflected endogenous TNF-alpha mRNA expression, whereas randomly integrated TNF-alpha reporter lines gave variable expression in response to transcriptional and epigenetic regulators. 5,6-Dimethylxanthenone-4-acetic acid (DMXAA), currently used in cancer clinical trials to induce TNF-alpha gene transcription, was only effective at inducing reporter expression from TNF-alpha gene-targeted cells.

conclusionWe conclude that gene-targeted reporter cell lines provide predictive indexing of gene transcription for drug discovery.

Indexed as

AdenoviridaeAnimalsCell LineGene Expression RegulationGenes, ReporterGene TargetingHeLa CellsHumansLuciferases, RenillaRNA, MessengerTranscription, GeneticTumor Necrosis Factor-alphaXanthonesLuciferases, RenillaRNA, MessengerTumor Necrosis Factor-alphavadimezanXanthones

Identifiers

PMID19220876
PMCPMC2657777
OpenAlexW2013379207

What OpenQuestion holds

Textmetadata
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.