Evidence map›Paper›PMID 29719377›Full record

ArticleDrug design, development and therapy2018

Attenuation of everolimus-induced cytotoxicity by a protective autophagic pathway involving ERK activation in renal cell carcinoma cells.

Yizhou Zeng, Xiaofang Tian, Quan Wang, Weiyang He, Jing Fan, Xin Gou

Open access · goldAbstract read
In one paragraph

Article in Drug design, development and therapy, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.3field-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

13 citing papers in PubMed, 19 citations in OpenAlex.

  1. Review
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  9. The KRASCancer discovery · 2020
    Article
  10. Review
  11. Article
  12. mTOR inhibitor Everolimus-induced apoptosis in melanoma cells.Journal of cell communication and signaling · 2019
    Article
  13. Review
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.

Yizhou ZengDepartment of Urinary Surgery, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, China.
Xiaofang TianDepartment of Urinary Surgery, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, China.
Quan WangDepartment of Urinary Surgery, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, China.
Weiyang HeDepartment of Urinary Surgery, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, China.
Jing FanDepartment of Urinary Surgery, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, China.
Xin GouDepartment of Urinary Surgery, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, China.
First Affiliated Hospital of Chongqing Medical University · CNChongqing Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimThe mammalian target of rapamycin (mTOR) pathway is a critical target for cancer treatment and the mTOR inhibitor everolimus (RAD001) has been approved for treatment of renal cell carcinoma (RCC). However, the limited efficacy of RAD001 has led to the development of drug resistance. Autophagy is closely related to cell survival and death, which may be activated under RAD001 stimulation. The aim of the present study was to identify the underlying mechanisms of RAD001 resistance in RCC cells through cytoprotective autophagy involving activation of the extracellular signal-regulated kinase (ERK) pathway. METHODS AND

resultsRAD001 strongly induced autophagy of RCC cells in a dose- and time-dependent manner, as confirmed by Western blot analysis. Importantly, suppression of autophagy by the pharmacological inhibitor chloroquine effectively enhanced RAD001-induced apoptotic cytotoxicity, as demonstrated by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and Western blot analysis, indicating a cytoprotective role for RAD001-induced autophagy. In addition, as was shown by the MTT assay, flow cytometry, and Western blot analysis, RAD001 robustly activated ERK, but not c-Jun N-terminal kinase and p38. Activation of ERK was inhibited by the pharmacological inhibitor selumetinib (AZD6244), which effectively promoted RAD001-induced cell death. Moreover, employing AZD6244 markedly attenuated RAD001-induced autophagy and enhanced RAD001-induced apoptosis, which play a central role in RAD001-induced cell death. Furthermore, RAD001-induced autophagy is regulated by ERK-mediated phosphorylation of Beclin-1 and B-cell lymphoma 2, as confirmed by Western blot analysis.

conclusionThese results suggest that RAD001-induced autophagy involves activation of the ERK, which may impair cytotoxicity of RAD001 in RCC cells. Thus, inhibition of the activation of ERK pathway-mediated autophagy may be useful to overcome chemoresistance to RAD001.

Indexed as

Antineoplastic AgentsAutophagyBenzimidazolesCarcinoma, Renal CellCell ProliferationCell SurvivalDose-Response Relationship, DrugDrug Screening Assays, AntitumorEverolimusExtracellular Signal-Regulated MAP KinasesFlow CytometryHumansKidney NeoplasmsProtein Kinase InhibitorsStructure-Activity RelationshipTumor Cells, CulturedAntineoplastic AgentsAZD 6244BenzimidazolesEverolimusExtracellular Signal-Regulated MAP KinasesProtein Kinase InhibitorsapoptosisautophagyERKeverolimusrenal cancerselumetinib

Identifiers

PMID29719377
PMCPMC5914548
OpenAlexW2800754558

What OpenQuestion holds

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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.