Evidence map›Paper›PMID 30755605›Full record

ArticleCell death & disease2019

ER stress sensor, glucose regulatory protein 78 (GRP78) regulates redox status in pancreatic cancer thereby maintaining "stemness".

Patricia Dauer, Nikita S Sharma, Vineet K Gupta, Brittany Durden, Roey Hadad, Santanu Banerjee, Vikas Dudeja, Ashok Saluja, Sulagna Banerjee

Open access · goldAbstract read
In one paragraph

Article in Cell death & disease, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
8.9field-weighted citation impact, top 1% 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

79 citing papers in PubMed, 112 citations in OpenAlex.

  1. Review
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  5. HSPA5 overexpression predicts poor prognosis and drives radioresistance and metastasis in nasopharyngeal carcinoma.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
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  17. Sorafenib-Drug Delivery Strategies in Primary Liver Cancer.Journal of functional biomaterials · 2025
    Review
  18. Article
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19 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

9 authors at 3 institutions in 1 country.

Patricia DauerDepartment of Pharmacology, University of Minnesota, Minneapolis, MN, 55455, USA.
Nikita S SharmaDepartment of Surgery, University of Miami, Miami, FL, USA.
Vineet K GuptaDepartment of Surgery, University of Miami, Miami, FL, USA.
Brittany DurdenDepartment of Surgery, University of Miami, Miami, FL, USA.
Roey HadadDepartment of Surgery, University of Miami, Miami, FL, USA.
Santanu BanerjeeDepartment of Surgery, University of Miami, Miami, FL, USA.
Vikas DudejaDepartment of Surgery, University of Miami, Miami, FL, USA.
Ashok SalujaDepartment of Surgery, University of Miami, Miami, FL, USA.
Sulagna BanerjeeDepartment of Surgery, University of Miami, Miami, FL, USA. Sulagna.Banerjee@med.miami.edu.
University of Miami · USSylvester Comprehensive Cancer Center · USUniversity of Minnesota · US

Funding

The Inhibition of HSP70 Induces Apoptosis in Pancreatic Cancer CellsR01CA124723 · NCI · UNIVERSITY OF MINNESOTA · PI GILBOA, ELI, RAMAKRISHNAN, SUNDARAM · 2007 to 2022
$4.5M
Triptolide Augments Death Receptor Mediated Apoptosis in Pancreatic CancerR01CA170946 · NCI · UNIVERSITY OF MINNESOTA · PI SALUJA, ASHOK K · 2012 to 2016
$2.4M
Functional Significance of CD133 in Pancreatic CancerR01CA184274 · NCI · UNIVERSITY OF MINNESOTA · PI BANERJEE, SULAGNA · 2014 to 2018
$1.6M
NCI NIH HHS R01 CA124723NCI NIH HHS R01 CA170946NCI NIH HHS R01 CA184274
6 · The paper itself

Abstract

Endoplasmic reticulum (ER) stress and the unfolded protein response (UPR) signaling have been shown to be dysregulated in multiple cancer types. Glucose regulatory protein 78 (GRP78), the master regulator of the UPR, plays a role in proliferation, invasion, and metastasis in cancer. Cancer stem cells (CSCs) make up a crucial component of the tumor heterogeneity in pancreatic cancer, as well as other cancers. "Stemness" in pancreatic cancer defines a population of cells within the tumor that have increased therapeutic resistance as well as survival advantage. In the current study, we investigated how GRP78 was responsible for maintaining "stemness" in pancreatic cancer thereby contributing to its aggressive biology. We determined that GRP78 downregulation decreased clonogenicity and self-renewal properties in pancreatic cancer cell lines in vitro. In vivo studies resulted in delayed tumor initiation frequency, as well as smaller tumor volume in the shGRP78 groups. Additionally, downregulation of GRP78 resulted in dysregulated fatty acid metabolism in pancreatic tumors as well as the cells. Further, our results showed that shGRP78 dysregulates multiple transcriptomic and proteomic pathways that involve DNA damage, oxidative stress, and cell death, that were reversed upon treatment with a ROS inhibitor, N-acetylcysteine. This study thus demonstrates for the first time that the heightened UPR in pancreatic cancer may be responsible for maintenance of the "stemness" properties in these cells that are attributed to aggressive properties like chemoresistance and metastasis.

Indexed as

AnimalsCell Line, TumorCell ProliferationCell Self RenewalDNA DamageEndoplasmic Reticulum Chaperone BiPEndoplasmic Reticulum StressGene Knockdown TechniquesHeat-Shock ProteinsHeterograftsHumansLipid MetabolismMiceMice, NudeNeoplasm InvasivenessOxidation-ReductionEndoplasmic Reticulum Chaperone BiPHeat-Shock ProteinsHSPA5 protein, humanHspa5 protein, mouseReactive Oxygen Species

Identifiers

PMID30755605
PMCPMC6372649
OpenAlexW2913227896

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.