Evidence map›Paper›PMID 19860841›Full record

ArticleCancer science2010

Histone deacetylase inhibitor (SAHA) and repression of EZH2 synergistically inhibit proliferation of gallbladder carcinoma.

Junpei Yamaguchi, Motoko Sasaki, Yasunori Sato, Keita Itatsu, Kenichi Harada, Yoh Zen, Hiroko Ikeda, Yuji Nimura, Masato Nagino, Yasuni Nakanuma

Open access · greenAbstract read
In one paragraph

Article in Cancer science, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.0field-weighted citation impact, top 14% 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, 57 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

10 authors at 4 institutions in 1 country.

Junpei YamaguchiDepartment of Human Pathology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan.
Motoko Sasaki
Yasunori Sato
Keita Itatsu
Kenichi Harada
Yoh Zen
Hiroko Ikeda
Yuji Nimura
Masato Nagino
Yasuni Nakanuma
Kanazawa University · JPNagoya University · JPAichi Cancer Center · JPKanazawa University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Polycomb group protein EZH2, frequently overexpressed in malignant tumors, is the catalytic subunit of polycomb repressive complex 2 (PRC2). PRC2 interacts with HDACs in transcriptional silencing and relates to tumor suppressor loss. We examined the expression of HDAC isoforms (HDAC 1 and 2) and EZH2, and evaluated the possible use of HDAC inhibitor suberoylanilide hydroxamic acid (SAHA) and EZH2 repressor for gallbladder carcinoma. We used 48 surgically resected gallbladders and cultures of human gallbladder epithelial cells (HGECs), gallbladder carcinoma (TGBC2TKB), and cholangiocarcinoma (HuCCT-1 and TFK-1) cell lines for examination. Immunohistochemically, EZH2 was overexpressed in gallbladder carcinoma, especially poorly differentiated carcinoma, but not in normal epithelium. In contrast, HDAC1/2 were expressed in both carcinoma and normal epithelium in vivo. This pattern was verified in cultured cells; EZH2 was highly expressed only in TGBC2TKB, whereas HDAC1/2 were expressed in HGECs and TGBC2TKB. Interestingly, SAHA treatment caused significant cell number decline in three carcinoma cells, and this effect was synergized with EZH2 siRNA treatment; however, HGECs were resistant to SAHA. In TGBC2TKB cells, the expression of EZH2 and HDAC1/2 were decreased by SAHA treatment, and p16(INK4a), E-cadherin, and p21were simultaneously activated; however, no such findings were obtained in HGECs, suggesting that the effect of SAHA depends on the EZH2-mediated tumor suppressor loss. In conclusion, this study suggests a possible mechanism by which carcinoma cells but not normal cells are sensitive to SAHA and indicates the efficacy of this new anticancer agent in combination with EZH2 repression in gallbladder carcinoma.

Indexed as

AdultAgedAged, 80 and overAntineoplastic AgentsCell Line, TumorCell ProliferationCyclin-Dependent Kinase Inhibitor p16Cyclin-Dependent Kinase Inhibitor p21DNA-Binding ProteinsEnhancer of Zeste Homolog 2 ProteinFemaleGallbladder NeoplasmsHistone Deacetylase InhibitorsHistone DeacetylasesHumansImmunohistochemistryAntineoplastic AgentsCDKN1A protein, humanCyclin-Dependent Kinase Inhibitor p16Cyclin-Dependent Kinase Inhibitor p21DNA-Binding ProteinsEnhancer of Zeste Homolog 2 ProteinEZH2 protein, humanHistone Deacetylase InhibitorsHistone DeacetylasesPolycomb Repressive Complex 2RNA, Small InterferingTranscription Factors

Identifiers

PMID19860841
PMCPMC11159376
OpenAlexW2002617822

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.