Evidence map›Paper›PMID 19258443›Full record

ArticleClinical cancer research : an official journal of the American Association for Cancer Research2009

Ligand-dependent Notch signaling is involved in tumor initiation and tumor maintenance in pancreatic cancer.

Michael E Mullendore, Jan-Bart Koorstra, Yue-Ming Li, G Johan Offerhaus, Xing Fan, Clark M Henderson, William Matsui, Charles G Eberhart, Anirban Maitra, Georg Feldmann

Open access · bronzeAbstract read
In one paragraph

Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 104 papers.

0numbers the graph read from it
0cells of the map it votes in
104citing papers in PubMed
6.2field-weighted citation impact, top 3% 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

104 citing papers in PubMed, 196 citations in OpenAlex.

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  11. The Intricate Notch Signaling Dynamics in Therapeutic Realms of Cancer.ACS pharmacology & translational science · 2023
    Review
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  14. Article
  15. Inactivation ofCancer research communications · 2022
    Article
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  18. Article
  19. Pancreatic Cancer and Therapy: Role and Regulation of Cancer Stem Cells.International journal of molecular sciences · 2021
    Review
  20. Review

44 more citing papers are in PubMed but not listed here.

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

10 authors at 3 institutions in 1 country.

Michael E MullendoreDepartment of Pathology, The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Jan-Bart Koorstra
Yue-Ming Li
G Johan Offerhaus
Xing Fan
Clark M Henderson
William Matsui
Charles G Eberhart
Anirban Maitra
Georg Feldmann
Johns Hopkins Medicine · USJohns Hopkins University · USMemorial Sloan Kettering Cancer Center · US

Funding

Tumor Antigens for Individual Signatures and TherapyP50CA062924 · NCI · JOHNS HOPKINS UNIVERSITY · PI LENNON, ANNE MARIE · 1993 to 2022
$54.6M
Notch signaling in brain tumorsR01NS055089 · NINDS · JOHNS HOPKINS UNIVERSITY · PI EBERHART, CHARLES G · 2007 to 2016
$3.2M
Hedgehog Inhibitors in Pancreas CancerR01CA113669 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI MAITRA, ANIRBAN · 2005 to 2014
$3.1M
NCI NIH HHS P50 CA062924NCI NIH HHS P50CA62924NCI NIH HHS R01 CA113669NCI NIH HHS R01CA113669NINDS NIH HHS R01 NS055089NINDS NIH HHS R01NS055089
6 · The paper itself

Abstract

purposeAberrant activation of the Notch signaling pathway is commonly observed in human pancreatic cancer, although the mechanism(s) for this activation has not been elucidated. EXPERIMENTAL

designA panel of 20 human pancreatic cancer cell lines was profiled for the expression of Notch pathway-related ligands, receptors, and target genes. Disruption of intracellular Notch signaling, either genetically by RNA interference targeting NOTCH1 or pharmacologically by means of the gamma-secretase inhibitor GSI-18, was used for assessing requirement of Notch signaling in pancreatic cancer initiation and maintenance.

resultsStriking overexpression of Notch ligand transcripts was detectable in the vast majority of pancreatic cancer cell lines, most prominently JAGGED2 (18 of 20 cases, 90%) and DLL4 (10 of 20 cases, 50%). In two cell lines, genomic amplification of the DLL3 locus was observed, mirrored by overexpression of DLL3 transcripts. In contrast, coding region mutations of NOTCH1 or NOTCH2 were not observed. Genetic and pharmacologic inhibition of Notch signaling mitigated anchorage-independent growth in pancreatic cancer cells, confirming that sustained Notch activation is a requirement for pancreatic cancer maintenance. Further, transient pretreatment of pancreatic cancer cells with GSI-18 resulted in depletion in the proportion of tumor-initiating aldehyde dehydrogenase-expressing subpopulation and was associated with inhibition of colony formation in vitro and xenograft engraftment in vivo, underscoring a requirement for the Notch-dependent aldehyde dehydrogenase-expressing cells in pancreatic cancer initiation.

conclusionsOur studies confirm that Notch activation is almost always ligand dependent in pancreatic cancer, and inhibition of Notch signaling is a promising therapeutic strategy in this malignancy.

Indexed as

Signal TransductionAldehyde DehydrogenaseAmyloid Precursor Protein SecretasesCell Line, TumorCell ProliferationEnzyme InhibitorsGene AmplificationHumansIntercellular Signaling Peptides and ProteinsIntracellular Signaling Peptides and ProteinsJagged-2 ProteinLigandsMembrane ProteinsMutationPancreatic NeoplasmsReceptor, Notch1Aldehyde DehydrogenaseAmyloid Precursor Protein SecretasesDLL3 protein, humanEnzyme InhibitorsIntercellular Signaling Peptides and ProteinsIntracellular Signaling Peptides and ProteinsJAG2 protein, humanJagged-2 ProteinLigandsMembrane ProteinsNOTCH1 protein, humanNOTCH2 protein, humanReceptor, Notch1Receptor, Notch2Receptors, Notch

Identifiers

PMID19258443
PMCPMC2711441
OpenAlexW2170785598

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.