Evidence map›Paper›PMID 26288183›Full record

ArticlePloS one2015

Inhibition of Autophagy Potentiated the Antitumor Effect of Nedaplatin in Cisplatin-Resistant Nasopharyngeal Carcinoma Cells.

Zhongyu Liu, Jun Liu, Li Li, Dan Nie, Qilei Tao, Jian Wu, Jiajun Fan, Chen Lin, Shuwei Zhao, Dianwen Ju

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 18% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. The multiple roles of autophagy in uveal melanoma and the microenvironment.Journal of cancer research and clinical oncology · 2024
    Pooled it
  2. Trial
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  6. Blockage of Autophagy for Cancer Therapy: A Comprehensive Review.International journal of molecular sciences · 2024
    Review
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  8. 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

10 authors at 4 institutions in 2 countries.

Zhongyu LiuDepartment of Otolaryngology-Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China.
Jun LiuMary Babb Randolph Cancer Center, West Virginia University, Morgantown, West Virginia, United States of America.
Li LiDepartment of Otolaryngology-Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China.
Dan NieDepartment of Otolaryngology, Traditional Chinese Medicine Hospital of Guangdong Province, Guangzhou, China.
Qilei TaoDepartment of Otolaryngology-Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China.
Jian WuDepartment of Otolaryngology-Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China.
Jiajun FanDepartment of Biosynthesis, School of Pharmacy, Fudan University, Shanghai, China.
Chen LinDepartment of Otolaryngology-Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China.
Shuwei ZhaoDepartment of Otolaryngology-Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China.
Dianwen JuDepartment of Biosynthesis, School of Pharmacy, Fudan University, Shanghai, China.
Second Military Medical University · CNFudan University · CNGuangdong Provincial Hospital of Traditional Chinese Medicine · CNWest Virginia University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nedaplatin, a cisplatin analog, was developed to reduce the toxicity of cisplatin, whereas it can be cross-resistant with cisplatin in some circumstances. This study aimed to investigate the role of autophagy in nedaplatin induced cell death in cisplatin-resistant nasopharyngeal carcinoma cells. Here, we showed that HNE1/DDP and CNE2/DDP cells were resistant to nedaplatin-induced cell death with reduced apoptotic activity. Nedaplatin treatment resulted in autophagosome accumulation and increased expression of LC3-II, indicating the induction of autophagy by nedaplatin in HNE1/DDP and CNE2/DDP cells. Inhibition of autophagy by Bafilomycin A1 (Baf A1) and 3-Methyladenine (3-MA) remarkably enhanced the antitumor efficacy of nedaplatin in HNE1/DDP and CNE2/DDP cells, suggesting that the resistance to nedaplatin-induced cell death was caused by enhanced autophagy in nedaplatin-resistant NPC cells. Additionally, Baf A1 enhanced reactive oxygen species (ROS) generation and apoptosis induced by nedaplatin in HNE1/DDP cells. Mechanistically, nedaplatin treatment caused activation of ERK1/2 and suppression of Akt/mTOR signaling pathways. While inhibition of ERK1/2 by MEK1/2 inhibitor, U0126, could reduce the expression of LC3-II in nedaplatin-resistant NPC cells. Furthermore, suppression of ROS could inhibit nedaplatin-induced ERK activation in HNE1/DDP cells, indicating that ROS and ERK were involved in nedaplatin-induced autophagy. Together, these findings suggested that autophagy played a cytoprotective role in nedaplatin-induced cytotoxicity of HNE1/DDP and CNE2/DDP cells. Furthermore, our results highlighted a potential approach to restore the sensitivity of cisplatin-resistant nasopharyngeal cancer cells to nedaplatin in combination with autophagy inhibitors.

Indexed as

AdenineAntineoplastic AgentsApoptosisAutophagyButadienesCarcinomaCell Line, TumorCell ProliferationCell SurvivalCisplatinDrug Resistance, NeoplasmEnzyme ActivationExtracellular Signal-Regulated MAP KinasesHumansMacrolidesMicrotubule-Associated Proteins3-methyladenineAdenineAntineoplastic Agentsbafilomycin A1ButadienesCisplatinExtracellular Signal-Regulated MAP KinasesMacrolidesMAP1LC3A protein, humanMicrotubule-Associated ProteinsMTOR protein, humannedaplatinNitrilesOrganoplatinum CompoundsProto-Oncogene Proteins c-aktReactive Oxygen SpeciesTOR Serine-Threonine KinasesU 0126

Identifiers

PMID26288183
PMCPMC4543554
OpenAlexW1877976446

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.