Evidence map›Paper›PMID 22493284›Full record

ArticleThe Journal of biological chemistry2012

Ataxia-Telangiectasia, Mutated (ATM)/Nuclear Factor κ light chain enhancer of activated B cells (NFκB) signaling controls basal and DNA damage-induced transglutaminase 2 expression.

Lingbao Ai, Ryan R Skehan, John Saydi, Tong Lin, Kevin D Brown

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.2field-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

25 citing papers in PubMed, 72 citations in OpenAlex.

  1. Article
  2. Review
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  4. Article
  5. Article
  6. Transglutaminase 2 in breast cancer metastasis and drug resistance.Frontiers in cell and developmental biology · 2024
    Review
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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

5 authors at 3 institutions in 1 country.

Lingbao AiDepartment of Biochemistry and Molecular Biology, University of Florida College of Medicine, Gainesville, Florida 32610, USA.
Ryan R Skehan
John Saydi
Tong Lin
Kevin D Brown
Florida College · USUniversity of Florida Health · USUniversity of Florida · US

Funding

Nitrosourea-induced growth arrest and apoptotic pathwaysR01CA102289 · NCI · UNIVERSITY OF FLORIDA · PI BROWN, KEVIN D · 2004 to 2007
$900k
NCI NIH HHS R01 CA102289NCI NIH HHS R01-CA102289
6 · The paper itself

Abstract

Transglutaminase 2 (TG2) is a ubiquitously expressed enzyme that cross-links proteins and its overexpression, linked to a drug resistant phenotype, is commonly observed in cancer cells. Further, up-regulation of TG2 expression occurs during response to various forms of cell stress; however, the molecular mechanisms that drive inducible expression of the TG2 gene (TGM2) require elucidation. Here we show that genotoxic stress induces TG2 expression through the Ataxia-Telangiectasia, Mutated (ATM)/Nuclear Factor κ light chain enhancer of activated B cells (NFκB) signaling pathway. We further document that NFκB is both necessary and sufficient to drive constitutive TG2 expression in cultured cell lines. Additionally, shRNA-mediated knockdown or pharmacological inhibition of the ATM kinase results in reduced constitutive TG2 expression and NFκB transcriptional activity. We document that the NFκB subunit p65 (RelA) interacts with two independent consensus NFκB binding sites within the TGM2 promoter, that mutation of either site or pharmacological inhibition of NFκB reduces TGM2 promoter activity, and genotoxic stress drives heightened association of p65 with the TGM2 promoter. Finally, we observed that knockdown of either p65 or ATM in MDA-MB-468 breast cancer cells expressing recombinant TG2 partially reduces resistance to doxorubicin, indicating that the drug resistance linked to overexpression of TG2 functions, in part, through p65 and ATM. This work establishes a novel ATM-dependent signaling loop where TG2 and NFκB activate each other resulting in sustained activation of NFκB and acquisition of a drug-resistant phenotype.

Indexed as

Signal TransductionAtaxia Telangiectasia Mutated ProteinsBase SequenceCell Cycle ProteinsCell Line, TumorDNA-Binding ProteinsDNA DamageDNA PrimersGTP-Binding ProteinsHumansNF-kappa BProtein Glutamine gamma Glutamyltransferase 2Protein Serine-Threonine KinasesReal-Time Polymerase Chain ReactionRNA InterferenceTranscription, GeneticAtaxia Telangiectasia Mutated ProteinsATM protein, humanCell Cycle ProteinsDNA-Binding ProteinsDNA PrimersGTP-Binding ProteinsNF-kappa BProtein Glutamine gamma Glutamyltransferase 2Protein Serine-Threonine KinasesTGM2 protein, humanTransglutaminasesTumor Suppressor Proteins

Identifiers

PMID22493284
PMCPMC3365769
OpenAlexW2063714301

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.