Evidence map›Paper›PMID 22248096›Full record

ArticleBMC complementary and alternative medicine2012

Analysis of tanshinone IIA induced cellular apoptosis in leukemia cells by genome-wide expression profiling.

Chang Liu, Jianqin Li, Liangjie Wang, Fuqun Wu, Linfang Huang, Yue Xu, Jieyu Ye, Bin Xiao, Fanyi Meng, Shilin Chen and 1 more

Open access · goldAbstract read
In one paragraph

Article in BMC complementary and alternative medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
9.6field-weighted citation impact, top 3% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 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 2 countries.

Chang LiuInstitute of Medicinal Plant Development, Chinese Academy of Medical Science, 151 MaLianWa North Road, Beijing, 100193, PR China. cliu6688@yahoo.com
Jianqin Li
Liangjie Wang
Fuqun Wu
Linfang Huang
Yue Xu
Jieyu Ye
Bin Xiao
Fanyi Meng
Shilin Chen
Mo Yang
Chinese Academy of Medical Sciences & Peking Union Medical College · CNNanfang Hospital · CNChinese University of Hong Kong · CNSouthern Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTanshinone IIA (Tan IIA) is a diterpene quinone extracted from the root of Salvia miltiorrhiza, a Chinese traditional herb. Although previous studies have reported the anti-tumor effects of Tan IIA on various human cancer cells, the underlying mechanisms are not clear. The current study was undertaken to investigate the molecular mechanisms of Tan IIA's apoptotic effects on leukemia cells in vitro.

methodsThe cytotoxicity of Tan IIA on different types of leukemia cell lines was evaluated by the 3-[4,5-dimethylthiazol-2,5]-diphenyl tetrazolium bromide (MTT) assay on cells treated without or with Tan IIA at different concentrations for different time periods. Cellular apoptosis progression with and without Tan IIA treatment was analyzed by Annexin V and Caspase 3 assays. Gene expression profiling was used to identify the genes regulated after Tan IIA treatment and those differentially expressed among the five cell lines. Confirmation of these expression regulations was carried out using real-time quantitative PCR and ELISA. The antagonizing effect of a PXR inhibitor L-SFN on Tan IIA treatment was tested using Colony Forming Unit Assay.

resultsOur results revealed that Tan IIA had different cytotoxic activities on five types of leukemia cells, with the highest toxicity on U-937 cells. Tan IIA inhibited the growth of U-937 cells in a time- and dose-dependent manner. Annexin V and Caspase-3 assays showed that Tan IIA induced apoptosis in U-937 cells. Using gene expression profiling, 366 genes were found to be significantly regulated after Tan IIA treatment and differentially expressed among the five cell lines. Among these genes, CCL2 was highly expressed in untreated U-937 cells and down-regulated significantly after Tan IIA treatment in a dose-dependent manner. RT-qPCR analyses validated the expression regulation of 80% of genes. Addition of L-sulforaphane (L-SFN), an inhibitor of Pregnane×receptor (PXR) significantly attenuated Tan IIA's effects using colony forming assays.

conclusionsTan IIA has significant growth inhibition effects on U-937 cells through the induction of apoptosis. And Tan IIA-induced apoptosis might result from the activation of PXR, which suppresses the activity of NF-κB and lead to the down-regulation of CCL2 expression.

Indexed as

AbietanesAntineoplastic Agents, PhytogenicApoptosisCell Line, TumorChemokine CCL2Dose-Response Relationship, DrugDown-RegulationGene Expression ProfilingGene Expression Regulation, LeukemicGenes, NeoplasmGenome-Wide Association StudyHumansIsothiocyanatesLeukemiaPhytotherapyPlant ExtractsAbietanesAntineoplastic Agents, PhytogenicCCL2 protein, humanChemokine CCL2IsothiocyanatesPlant ExtractsPregnane X ReceptorReceptors, SteroidsulforaphaneSulfoxidestanshinoneThiocyanates

Identifiers

PMID22248096
PMCPMC3398275
OpenAlexW2152220744

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LicenceCC BY
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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.