Evidence map›Paper›PMID 26320171›Full record

ArticleOncotarget2015

Calmodulin antagonists promote TRA-8 therapy of resistant pancreatic cancer.

Kaiyu Yuan, Sun Yong, Fei Xu, Tong Zhou, Jay M McDonald, Yabing Chen

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

19 citing papers in PubMed, 31 citations in OpenAlex.

  1. Review
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  4. CaBiomolecules · 2023
    Review
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  6. Article
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  8. Calcium channel blockers potentiate gemcitabine chemotherapy  in pancreatic cancer.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  9. Review
  10. Review
  11. Regulation of pancreatic cancer TRAIL resistance by protein O-GlcNAcylation.Laboratory investigation; a journal of technical methods and pathology · 2020
    Article
  12. Article
  13. Article
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  15. Article
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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

6 authors at 2 institutions in 1 country.

Kaiyu YuanDepartment of Pathology, University of Alabama at Birmingham, Alabama 35294, Birmingham, USA.
Sun YongDepartment of Pathology, University of Alabama at Birmingham, Alabama 35294, Birmingham, USA.
Fei XuDepartment of Pathology, University of Alabama at Birmingham, Alabama 35294, Birmingham, USA.
Tong ZhouDepartment of Medicine, University of Alabama at Birmingham, Alabama 35294, Birmingham, USA.
Jay M McDonaldDepartment of Pathology, University of Alabama at Birmingham, Alabama 35294, Birmingham, USA.
Yabing ChenDepartment of Pathology, University of Alabama at Birmingham, Alabama 35294, Birmingham, USA.
University of Alabama at Birmingham · USBirmingham VA Medical Center · US

Funding

Calmodulin Regulates Fas-Mediated Apoptosis: A Target for Cancer TherapyI01BX000311 · VA · BIRMINGHAM VA MEDICAL CENTER · PI MCDONALD, JAY M. · 2009 to 2013
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Death Receptor Signaling in Pancreatic Cancer: Mechanisms and Therapeutic TargetsI01BX002296 · VA · BIRMINGHAM VA MEDICAL CENTER · PI CHEN, YABING · 2014 to 2017
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BLRD VA I01 BX000311BLRD VA I01 BX002296
6 · The paper itself

Abstract

Pancreatic cancer is highly malignant with limited therapy and a poor prognosis. TRAIL-activating therapy has been promising, however, clinical trials have shown resistance and limited responses of pancreatic cancers. We investigated the effects of calmodulin(CaM) antagonists, trifluoperazine(TFP) and tamoxifen(TMX), on TRA-8-induced apoptosis and tumorigenesis of TRA-8-resistant pancreatic cancer cells, and underlying mechanisms. TFP or TMX alone did not induce apoptosis of resistant PANC-1 cells, while they dose-dependently enhanced TRA-8-induced apoptosis. TMX treatment enhanced efficacy of TRA-8 therapy on tumorigenesis in vivo. Analysis of TRA-8-induced death-inducing-signaling-complex (DISC) identified recruitment of survival signals, CaM/Src, into DR5-associated DISC, which was inhibited by TMX/TFP. In contrast, TMX/TFP increased TRA-8-induced DISC recruitment/activation of caspase-8. Consistently, caspase-8 inhibition blocked the effects of TFP/TMX on TRA-8-induced apoptosis. Moreover, TFP/TMX induced DR5 expression. With a series of deletion/point mutants, we identified CaM antagonist-responsive region in the putative Sp1-binding domain between -295 to -300 base pairs of DR5 gene. Altogether, we have demonstrated that CaM antagonists enhance TRA-8-induced apoptosis of TRA-8-resistant pancreatic cancer cells by increasing DR5 expression and enhancing recruitment of apoptotic signal while decreasing survival signals in DR5-associated DISC. Our studies support the use of these readily available CaM antagonists combined with TRAIL-activating agents for pancreatic cancer therapy.

Indexed as

AnimalsAntibodies, MonoclonalAntineoplastic AgentsApoptosisBinding SitesCalmodulinCaspase 8Caspase InhibitorsCell Line, TumorDeath Domain Receptor Signaling Adaptor ProteinsDose-Response Relationship, DrugDrug Resistance, NeoplasmEnzyme ActivationHumansMaleMice, NudeAntibodies, MonoclonalAntineoplastic AgentsCalmodulinCASP8 protein, humanCaspase 8Caspase InhibitorsDeath Domain Receptor Signaling Adaptor ProteinsReceptors, TNF-Related Apoptosis-Inducing LigandSP1 protein, humanSp1 Transcription Factorsrc-Family KinasesTamoxifenTRA-8 monoclonal antibodyTrifluoperazineapoptosiscalmodulin antagonistsdeath receptor 5pancreatic cancerresistance

Identifiers

PMID26320171
PMCPMC4694833
OpenAlexW1961140282

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.