Evidence map›Paper›PMID 33298588›Full record

ArticleMolecular cancer therapeutics2021

EMT-Induced Gemcitabine Resistance in Pancreatic Cancer Involves the Functional Loss of Equilibrative Nucleoside Transporter 1.

Brenna Weadick, Debasis Nayak, Avinash K Persaud, Sau Wai Hung, Radhika Raj, Moray J Campbell, Wei Chen, Junan Li, Terence M Williams, Rajgopal Govindarajan

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cancer therapeutics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
2.2field-weighted citation impact, top 10% 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

37 citing papers in PubMed, 52 citations in OpenAlex.

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  13. Clinical and Genomic Features of Classical and Basal Transcriptional Subtypes in Pancreatic Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024
    Article
  14. Unveiling the resistance to therapies in pancreatic ductal adenocarcinoma.Drug resistance updates : reviews and commentaries in antimicrobial and anticancer chemotherapy · 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

10 authors at 3 institutions in 1 country.

Brenna WeadickDivision of Pharmaceutics and Pharmacology, The Ohio State University College of Pharmacy, Columbus, Ohio.
Debasis NayakDivision of Pharmaceutics and Pharmacology, The Ohio State University College of Pharmacy, Columbus, Ohio.
Avinash K PersaudDivision of Pharmaceutics and Pharmacology, The Ohio State University College of Pharmacy, Columbus, Ohio.
Sau Wai HungDepartment of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens, Georgia.
Radhika RajDivision of Pharmaceutics and Pharmacology, The Ohio State University College of Pharmacy, Columbus, Ohio.
Moray J CampbellDivision of Pharmaceutics and Pharmacology, The Ohio State University College of Pharmacy, Columbus, Ohio.ORCID https://orcid.org/0000-0002-3355-0928
Wei ChenDepartment of Pathology, The Ohio State University Wexner Medical Center, Columbus, Ohio.
Junan LiDivision of Pharmaceutics and Pharmacology, The Ohio State University College of Pharmacy, Columbus, Ohio.
Terence M WilliamsDepartment of Radiation Oncology, The Ohio State University Wexner Medical Center, Columbus, Ohio.ORCID https://orcid.org/0000-0002-1020-0845
Rajgopal GovindarajanDivision of Pharmaceutics and Pharmacology, The Ohio State University College of Pharmacy, Columbus, Ohio. govindarajan.21@osu.edu.
The Ohio State University · USThe Ohio State University Wexner Medical Center · USUniversity of Georgia · US

Funding

Translational Therapeutics Research Program (TT)P30CA016058 · NCI · OHIO STATE UNIVERSITY · PI Tasleem J Padamsee · 1985 to 2026
$132.3M
Exploiting Caveolae-Dependent Albumin Endocytosis to Optimize Therapy in Pancreatic CancerR01CA198128 · NCI · OHIO STATE UNIVERSITY · PI WILLIAMS, TERENCE MARQUES · 2016 to 2021
$2.4M
Epigenetic priming in pancreatic cancer chemotherapyR01CA188464 · NCI · UNIVERSITY OF GEORGIA · PI GOVINDARAJAN, RAJGOPAL · 2014 to 2018
$1.6M
NCI NIH HHS P30 CA016058NCI NIH HHS R01 CA188464NCI NIH HHS R01 CA198128
6 · The paper itself

Abstract

Epithelial-mesenchymal transition (EMT) in cancer cells drives cancer chemoresistance, yet the molecular events of EMT that underpin the acquisition of chemoresistance are poorly understood. Here, we demonstrate a loss of gemcitabine chemosensitivity facilitated by human equilibrative nucleoside transporter 1 (ENT1) during EMT in pancreatic cancer and identify that cadherin switching from the epithelial (E) to neuronal (N) type, a hallmark of EMT, contributes to this loss. Our findings demonstrate that N-cadherin decreases ENT1 expression, membrane localization, and gemcitabine transport, while E-cadherin augments each of these. Besides E- and N-cadherin, another epithelial cell adhesion molecule, EpCAM, played a more prominent role in determining ENT1 membrane localization. Forced expression of EpCAM opposed cadherin switching with restored ENT1 expression, membrane localization, and gemcitabine transport in EMT-committed pancreatic cancer cells. In gemcitabine-treated mice, EpCAM-positive tumors had high ENT1 expression and reduced metastasis, whereas tumors with N-cadherin expression resisted gemcitabine treatment and formed extensive secondary metastatic nodules. Tissue microarray profiling and multiplexed IHC analysis of pancreatic cancer patient-derived primary tumors revealed EpCAM and ENT1 cell surface coexpression is favored, and ENT1 plasma membrane expression positively predicted median overall survival times in patients treated with adjuvant gemcitabine. Together, our findings identify ENT1 as an inadvertent target of EMT signaling mediated by cadherin switching and provide a mechanism by which mesenchymal pancreatic cancer cells evade gemcitabine therapy during EMT.

Indexed as

AnimalsCell Line, TumorDeoxycytidineDisease Models, AnimalEpithelial-Mesenchymal TransitionEquilibrative Nucleoside Transporter 1GemcitabineHumansMiceDeoxycytidineEquilibrative Nucleoside Transporter 1Gemcitabine

Identifiers

PMID33298588
PMCPMC9464091
OpenAlexW3112564950

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.