Evidence map›Paper›PMID 25337231›Full record

ArticleInternational journal of clinical and experimental pathology2014

Grandinin down-regulates phosphorylation of epidermal growth factor receptor.

Zhuling Qu, Aiqin Song, Wei Feng, Ruyang Teng, Jie Gao, Xuanlong Yi

Open access · greenAbstract read
In one paragraph

Article in International journal of clinical and experimental pathology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
0.6field-weighted citation impact, top 30% 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

0 citing papers in PubMed, 3 citations in OpenAlex.

No citing paper in PubMed yet.

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 1 institution in 1 country.

Zhuling QuThe Affiliated Hospital of Qingdao University Qingdao 266021, Shandong Province, China.
Aiqin SongThe Affiliated Hospital of Qingdao University Qingdao 266021, Shandong Province, China.
Wei FengThe Affiliated Hospital of Qingdao University Qingdao 266021, Shandong Province, China.
Ruyang TengThe Affiliated Hospital of Qingdao University Qingdao 266021, Shandong Province, China.
Jie GaoThe Affiliated Hospital of Qingdao University Qingdao 266021, Shandong Province, China.
Xuanlong YiThe Affiliated Hospital of Qingdao University Qingdao 266021, Shandong Province, China.
Qingdao University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsGrandinin (C(46)H(34)O(30)) is a compound found in Melaleuca quinquenervia leaves and in oaks. This study is to determine effects of grandinin on malignant lung cells and the related molecular mechanisms.

methodsMalignant cells were treated with grandinin with various concentrations. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrozolium bromide (MTT) assays and apoptosis assays were performed to determine effects of grandinin on cell viability and apoptosis. Western blotting and real time-PCR were used to determine if grandinin affects levels of phosphorylated EGFR (p-EGFR) and phosphorylated AKT (p-AKT), as well as their mRNA transcript levels.

resultsIt was found that grandinin treatments reduce viability of malignant lung cells and induces apoptosis. When treated with grandinin (16 μM), the apoptosis of the three lung cancer cell lines MS-1, A549, and LK-2 were increased by 8-9 folds, in comparison with the cells treated with DMSO only (the control condition). Furthermore, grandinin treatments lead to down-regulation of levels of p-EGFR and p-AKT in three malignant lung cell lines. However, grandinin does not affect mRNA levels of EGFR and AKT.

conclusionsThese experimental results indicated grandinin significantly reduce malignant cell viability and effectively induces apoptosis of malignant lung cells by mediating phosphorylation down-regulation of cellular signaling proteins EGFR and AKT. It is suggested that grandinin treatments might be an effective therapeutic strategy of lung malignancies upon further studies in the future.

Indexed as

Antineoplastic Agents, PhytogenicApoptosisCell Line, TumorCell SurvivalDose-Response Relationship, DrugDown-RegulationErbB ReceptorsGene Expression Regulation, EnzymologicGene Expression Regulation, NeoplasticGlycosidesHeterocyclic Compounds, 4 or More RingsHumansLung NeoplasmsPhosphorylationProto-Oncogene Proteins c-aktRNA, MessengerAntineoplastic Agents, PhytogenicEGFR protein, humanErbB ReceptorsGlycosidesgrandininHeterocyclic Compounds, 4 or More RingsProto-Oncogene Proteins c-aktRNA, Messengerdown-regulates phosphorylationepidermal growth factor receptorGrandininphosphorylation

Identifiers

PMID25337231
PMCPMC4203202
OpenAlexW2234654129

What OpenQuestion holds

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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.