Evidence map›Paper›PMID 19701232›Full record

ArticleActa pharmacologica Sinica2009

n-Butylidenephthalide induced apoptosis in the A549 human lung adenocarcinoma cell line by coupled down-regulation of AP-2alpha and telomerase activity.

Chyou-wei Wei, Chai-ching Lin, Yung-luen Yu, Chai-yi Lin, Po-cheng Lin, Min-tze Wu, Cheng-jueng Chen, Wenliang Chang, Shinn-zong Lin, Yi-lin Sophia Chen and 1 more

Expression of concernOpen access · bronzeAbstract read
In one paragraph

Article in Acta pharmacologica Sinica, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It carries an expression of concern. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
1.1field-weighted citation impact, top 19% 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

35 citing papers in PubMed, 60 citations in OpenAlex.

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  12. Enhanced anticancer activity and endocytic mechanisms by polymeric nanocarriers of n-butylidenephthalide in leukemia cells.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2021
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  17. Antitumor Effects ofMolecules (Basel, Switzerland) · 2020
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  20. TERT-Regulation and Roles in Cancer Formation.Frontiers in immunology · 2020
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 8 institutions in 1 country.

Chyou-wei WeiInstitute of Biomedical Nutrition, College of Medicines and Nursings, Hungkuang University, Taichung, Taiwan, China;
Chai-ching Lin
Yung-luen Yu
Chai-yi Lin
Po-cheng Lin
Min-tze Wu
Cheng-jueng Chen
Wenliang Chang
Shinn-zong Lin
Yi-lin Sophia Chen
Horng-jyh Harn
National Ilan University · TWChina Medical University · TWAsia University · TWHungkuang University · TWNational Defense Medical Center · TWNational Dong Hwa University · TWTaiwan Agricultural Research Institute Council of Agriculture, Executive Yuan · TWTri-Service General Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo investigate the role of hTERT gene expression and AP-2alpha in n-butylidenephthalide (n-BP)-induced apoptosis in A549 lung cancer cells.

methodsViability of A549 cells was measured by MTT assay. Protein expression was determined by Western blot. Telomerase activity was measured using the modified telomere repeat amplification protocol (TRAP) assay. Xenograft mice were used as a model system to study the cytotoxic effect of n-BP in vivo. The morphology of tumor was examined by immunohistochemical staining.

resultsThe growth of A549 lung cancer cells treated with n-BP was significantly inhibited. Telomerase activity and hTERT mRNA expression were determined by telomeric repeat amplification protocol and reverse transcription-polymerase chain reaction, respectively. n-BP inhibited telomerase activity and hTERT mRNA expression in A549 cells while overexpression of hTERT could abolish BP-induced growth inhibition in the A549 cells. We also showed that hTERT promoter activity in the presence of n-BP was mediated via AP-2alpha. We saw an inhibition of tumor growth when nude mice carrying A549 subcutaneous xenograft tumors were treated with n-BP. Immunohistochemistry of this tumor tissue also showed a decrease in the expression of hTERT.

conclusionThe antiproliferative effects of n-BP on A549 cells in vitro and in vivo suggest a novel clinical application of this compound in the treatment of lung cancers.

Indexed as

AdenocarcinomaAnimalsApoptosisBlotting, WesternDown-RegulationGene Expression Regulation, NeoplasticHumansLung NeoplasmsMicePhthalic AnhydridesReverse Transcriptase Polymerase Chain ReactionRNA, NeoplasmTelomeraseTranscription Factor AP-2Tumor Cells, CulturedXenograft Model Antitumor AssaysbutylidenephthalidePhthalic AnhydridesRNA, NeoplasmTelomeraseTERT protein, humanTranscription Factor AP-2

Identifiers

PMID19701232
PMCPMC4007174
OpenAlexW2138826259

What OpenQuestion holds

Textmetadata
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.