Evidence map›Paper›PMID 25101566›Full record

ArticleBritish journal of cancer2014

Negative regulation of signal transducer and activator of transcription-3 signalling cascade by lupeol inhibits growth and induces apoptosis in hepatocellular carcinoma cells.

K S Siveen, A H Nguyen, J H Lee, F Li, S S Singh, A P Kumar, G Low, S Jha, V Tergaonkar, K S Ahn and 1 more

Open access · hybridAbstract read
In one paragraph

Article in British journal of cancer, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
3.5field-weighted citation impact, top 8% 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

37 citing papers in PubMed, 85 citations in OpenAlex.

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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

11 authors at 4 institutions in 3 countries.

K S SiveenDepartment of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
A H NguyenDepartment of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
J H LeeDepartment of Pathology, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea.
F LiDepartment of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
S S Singh1] Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore [2] Cancer Science Institute of Singapore, Centre for Translational Medicine, 14 Medical Drive, Singapore 117599, Singapore.
A P Kumar1] Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore [2] Cancer Science Institute of Singapore, Centre for Translational Medicine, 14 Medical Drive, Singapore 117599, Singapore [3] Biomedical Sciences, Faculty of Health Sciences, Curtin University, Perth, Western Australia 6009, Australia [4] Department of Biological Sciences, University of North Texas, Denton, TX 76203, USA.
G Low1] Cancer Science Institute of Singapore, Centre for Translational Medicine, 14 Medical Drive, Singapore 117599, Singapore [2] Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
S Jha1] Cancer Science Institute of Singapore, Centre for Translational Medicine, 14 Medical Drive, Singapore 117599, Singapore [2] Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
V TergaonkarInstitute of Molecular and Cell Biology, A*STAR, Biopolis Drive Proteos, Singapore, Singapore.
K S AhnDepartment of Pathology, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea.
G Sethi1] Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore [2] Cancer Science Institute of Singapore, Centre for Translational Medicine, 14 Medical Drive, Singapore 117599, Singapore.
National University of Singapore · SGKyung Hee University · KRAgency for Science, Technology and Research · SGUniversity of North Texas · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundConstitutive activation of signal transducer and activator of transcription signalling 3 (STAT3) has been linked with survival, proliferation and angiogenesis in a wide variety of malignancies including hepatocellular carcinoma (HCC).

methodsWe evaluated the effect of lupeol on STAT3 signalling cascade and its regulated functional responses in HCC cells.

resultsLupeol suppressed constitutive activation of STAT3 phosphorylation at tyrosine 705 residue effectively in a dose- and time-dependent manner. The phosphorylation of Janus-activated kinases (JAKs) 1 and 2 and Src was also suppressed by lupeol. Pervanadate treatment reversed the downregulation of phospho-STAT3 induced by lupeol, thereby indicating the involvement of a phosphatase. Indeed, we observed that treatment with lupeol increased the protein and mRNA levels of SHP-2, and silencing of SHP-2 abolished the inhibitory effects of lupeol on STAT3 activation. Treatment with lupeol also downregulated the expression of diverse STAT3-regulated genes and decreased the binding of STAT3 to VEGF promoter. Moreover, the proliferation of various HCC cells was significantly suppressed by lupeol, being associated with substantial induction of apoptosis. Depletion of SHP-2 reversed the observed antiproliferative and pro-apoptotic effects of lupeol.

conclusionsLupeol exhibited its potential anticancer effects in HCC through the downregulation of STAT3-induced pro-survival signalling cascade.

Indexed as

Antineoplastic AgentsApoptosisApoptosis Regulatory ProteinsCarcinoma, HepatocellularCell MovementCell ProliferationChemokine CXCL12Epidermal Growth FactorGene Expression Regulation, NeoplasticHep G2 CellsHumansJanus Kinase 1Janus Kinase 2Liver NeoplasmsLupanesPentacyclic TriterpenesAntineoplastic AgentsApoptosis Regulatory ProteinsChemokine CXCL12CXCL12 protein, humanEpidermal Growth FactorJAK1 protein, humanJAK2 protein, humanJanus Kinase 1Janus Kinase 2LupaneslupeolPentacyclic TriterpenesSTAT3 protein, humanSTAT3 Transcription FactorVascular Endothelial Growth Factor AVEGFA protein, human

Identifiers

PMID25101566
PMCPMC4183851
OpenAlexW2006013671

What OpenQuestion holds

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LicenceCC BY-NC-SA
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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.