Evidence map›Paper›PMID 23285100›Full record

ArticlePloS one2012

HDAC inhibitor L-carnitine and proteasome inhibitor bortezomib synergistically exert anti-tumor activity in vitro and in vivo.

Hongbiao Huang, Ningning Liu, Changshan Yang, Siyan Liao, Haiping Guo, Kai Zhao, Xiaofen Li, Shouting Liu, Lixia Guan, Chunjiao Liu and 7 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.1field-weighted citation impact, top 25% 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

18 citing papers in PubMed, 31 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

17 authors at 2 institutions in 2 countries.

Hongbiao HuangProtein Modification and Degradation Lab, Department of Pathophysiology, Guangzhou Medical College, Guangdong, People's Republic of China.
Ningning Liu
Changshan Yang
Siyan Liao
Haiping Guo
Kai Zhao
Xiaofen Li
Shouting Liu
Lixia Guan
Chunjiao Liu
Li Xu
Change Zhang
Wenbin Song
Bing Li
Ping Tang
Q Ping Dou
Jinbao Liu
Guangzhou Medical University · CNWayne State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Combinations of proteasome inhibitors and histone deacetylases (HDAC) inhibitors appear to be the most potent to produce synergistic cytotoxicity in preclinical trials. We have recently confirmed that L-carnitine (LC) is an endogenous HDAC inhibitor. In the current study, the anti-tumor effect of LC plus proteasome inhibitor bortezomib (velcade, Vel) was investigated both in cultured hepatoma cancer cells and in Balb/c mice bearing HepG2 tumor. Cell death and cell viability were assayed by flow cytometry and MTS, respectively. Gene, mRNA expression and protein levels were detected by gene microarray, quantitative real-time PCR and Western blot, respectively. The effect of Vel on the acetylation of histone H3 associated with the p21(cip1) gene promoter was examined by using ChIP assay and proteasome peptidase activity was detected by cell-based chymotrypsin-like (CT-like) activity assay. Here we report that (i) the combination of LC and Vel synergistically induces cytotoxicity in vitro; (ii) the combination also synergistically inhibits tumor growth in vivo; (iii) two major pathways are involved in the synergistical effects of the combinational treatment: increased p21(cip1) expression and histone acetylation in vitro and in vivo and enhanced Vel-induced proteasome inhibition by LC. The synergistic effect of LC and Vel in cancer therapy should have great potential in the future clinical trials.

Indexed as

AcetylationAnimalsAntineoplastic Agentsbcl-2-Associated X ProteinBoronic AcidsBortezomibCarnitineCaspasesCell DeathCell ProliferationChromatinCyclin-Dependent Kinase Inhibitor p21Drug SynergismEndoplasmic Reticulum StressEnzyme ActivationHep G2 CellsAntineoplastic Agentsbcl-2-Associated X ProteinBoronic AcidsBortezomibCarnitineCaspasesChromatinCyclin-Dependent Kinase Inhibitor p21Histone Deacetylase InhibitorsHistonesPoly(ADP-ribose) PolymerasesProteasome InhibitorsPyrazinesRNA, Small Interfering

Identifiers

PMID23285100
PMCPMC3527572
OpenAlexW1968219926

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.