Evidence map›Paper›PMID 28499449›Full record

ArticleMolecular cancer2017

PERK induces resistance to cell death elicited by endoplasmic reticulum stress and chemotherapy.

Iris C Salaroglio, Elisa Panada, Enrico Moiso, Ilaria Buondonno, Paolo Provero, Menachem Rubinstein, Joanna Kopecka, Chiara Riganti

Open access · goldAbstract read
In one paragraph

Article in Molecular cancer, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 123 papers.

0numbers the graph read from it
0cells of the map it votes in
123citing papers in PubMed
7.2field-weighted citation impact, top 2% 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

123 citing papers in PubMed, 204 citations in OpenAlex.

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63 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

8 authors at 4 institutions in 3 countries.

Iris C SalaroglioDepartment of Oncology, University of Torino, via Santena 5/bis, 10126, Torino, Italy.
Elisa PanadaDepartment of Oncology, University of Torino, via Santena 5/bis, 10126, Torino, Italy.
Enrico MoisoDepartment of Molecular Biotechnology and Health Sciences, University of Torino, via Nizza 52, 10126, Torino, Italy.
Ilaria BuondonnoDepartment of Oncology, University of Torino, via Santena 5/bis, 10126, Torino, Italy.
Paolo ProveroDepartment of Molecular Biotechnology and Health Sciences, University of Torino, via Nizza 52, 10126, Torino, Italy.
Menachem RubinsteinDepartment of Molecular Genetics, The Weizmann Institute of Science, 234 Herzl Street, 7610001, Rehovot, Israel.
Joanna KopeckaDepartment of Oncology, University of Torino, via Santena 5/bis, 10126, Torino, Italy. joanna.kopecka@unito.it.ORCID 0000-0003-3612-3953
Chiara RigantiDepartment of Oncology, University of Torino, via Santena 5/bis, 10126, Torino, Italy. chiara.riganti@unito.it.
University of Turin · ITTorino e-district · ITUniversity College Dublin · IEWeizmann Institute of Science · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNutrient deprivation, hypoxia, radiotherapy and chemotherapy induce endoplasmic reticulum (ER) stress, which activates the so-called unfolded protein response (UPR). Extensive and acute ER stress directs the UPR towards activation of death-triggering pathways. Cancer cells are selected to resist mild and prolonged ER stress by activating pro-survival UPR. We recently found that drug-resistant tumor cells are simultaneously resistant to ER stress-triggered cell death. It is not known if cancer cells adapted to ER stressing conditions acquire a chemoresistant phenotype.

methodsTo investigate this issue, we generated human cancer cells clones with acquired resistance to ER stress from ER stress-sensitive and chemosensitive cells.

resultsER stress-resistant cells were cross-resistant to multiple chemotherapeutic drugs: such multidrug resistance (MDR) was due to the overexpression of the plasma-membrane transporter MDR related protein 1 (MRP1). Gene profiling analysis unveiled that cells with acquired resistance to ER stress and chemotherapy share higher expression of the UPR sensor protein kinase RNA-like endoplasmic reticulum kinase (PERK), which mediated the erythroid-derived 2-like 2 (Nrf2)-driven transcription of MRP1. Disrupting PERK/Nrf2 axis reversed at the same time resistance to ER stress and chemotherapy. The inducible silencing of PERK reduced tumor growth and restored chemosensitivity in resistant tumor xenografts.

conclusionsOur work demonstrates for the first time that the adaptation to ER stress in cancer cells produces a MDR phenotype. The PERK/Nrf2/MRP1 axis is responsible for the resistance to ER stress and chemotherapy, and may represent a good therapeutic target in aggressive and resistant tumors.

Indexed as

AnimalsApoptosisATP-Binding Cassette, Sub-Family C ProteinsCell DeathColonic NeoplasmsDoxorubicinDrug Resistance, NeoplasmeIF-2 KinaseEndoplasmic Reticulum StressHT29 CellsHumansMiceNF-E2-Related Factor 2Signal TransductionUnfolded Protein ResponseXenograft Model Antitumor AssaysATP-Binding Cassette, Sub-Family C ProteinsDoxorubicinEIF2AK3 protein, humaneIF-2 Kinasemultidrug resistance-associated protein 1NFE2L2 protein, humanNF-E2-Related Factor 2ChemoresistanceEndoplasmic reticulum stressEukaryotic translation initiation factor-2α kinase 3/protein kinase RNA-like endoplasmic reticulum kinaseMultidrug resistance related protein 1Unfolded protein response

Identifiers

PMID28499449
PMCPMC5427528
OpenAlexW2613045338

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.