Evidence map›Paper›PMID 26726846›Full record

ArticleCell proliferation2016

Haem oxygenase 1 expression is associated with prognosis in cholangiocarcinoma patients and with drug sensitivity in xenografted mice.

S Kongpetch, A Puapairoj, C K Ong, L Senggunprai, A Prawan, U Kukongviriyapan, W Chan-On, E Y Siew, N Khuntikeo, B T Teh and 1 more

Open access · bronzeAbstract read
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Article in Cell proliferation, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

11 citing papers in PubMed, 20 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.

S KongpetchDepartment of Pharmacology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
A PuapairojDepartment of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
C K OngLaboratory of Cancer Epigenome, National Cancer Centre of Singapore, Singapore.
L SenggunpraiDepartment of Pharmacology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
A PrawanDepartment of Pharmacology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
U KukongviriyapanDepartment of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
W Chan-OnLaboratory of Cancer Epigenome, National Cancer Centre of Singapore, Singapore.
E Y SiewLaboratory of Cancer Epigenome, National Cancer Centre of Singapore, Singapore.
N KhuntikeoLiver Fluke and Cholangiocarcinoma Research Center, Khon Kaen University, Khon Kaen, Thailand.
B T TehLaboratory of Cancer Epigenome, National Cancer Centre of Singapore, Singapore.
V KukongviriyapanDepartment of Pharmacology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
Khon Kaen University · THNational University of Singapore · SGNational Cancer Centre Singapore · SGNational University Cancer Institute, Singapore · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveHaem oxygenase-1 (HO-1) plays important roles in cytoprotection and tumour growth. Cholangiocarcinoma (CCA) is a deadly malignancy with very poor prognosis. The role of HO-1 in tumour progression in CCA up to now has been relatively unexplored, thus, its possible therapeutic implications in CCA have been investigated here. MATERIALS AND

methodsHO-1 expression in tumour tissues from 50 CCA patients was determined by immunohistochemical analysis and its association with survival time was evaluated using the Kaplan-Meier method. Its role in CCA cells in vitro was evaluated by transwell and wound healing assays and suppression of HO-1 expression by siRNA. Effects of HO-1 inhibition on gemicitabine (GEM)-mediated tumour suppression was evaluated in nude mice xenografted with CCA cells.

resultsHO-1 expression was inversely associated with median overall survival time. Hazard ratio of patients with high HO-1 expression was 2.42 (95% CI: 1.16-5.08) with reference to low expression and HO-1 knock-down expression inhibited transwell cell migration. Suppression of HO-1 by Zn-protoporphyrin (ZnPP) enhanced cytotoxicity to GEM in CCA cells, validated in CCA xenografts. Treatment with GEM and ZnPP almost completely arrested tumour growth, whereas treatment with only a single reagent, retarded it. Tumour inhibition was associated with reduction in expression of Ki-67 and microvascular density, and enhanced p53 and p21 immunohistochemical staining.

conclusionHigh HO-1 expression was associated with poor prognosis of CCA. Synergistic role of HO-1 inhibition in chemotherapy of CCA is a promising insight for treatment of this tumour and warrants further investigation.

Indexed as

AdultAgedAnimalsCell Line, TumorCell MovementCholangiocarcinomaCyclin-Dependent Kinase Inhibitor p21DeoxycytidineFemaleGemcitabineHeme Oxygenase-1HumansImmunohistochemistryKi-67 AntigenMaleMiceCyclin-Dependent Kinase Inhibitor p21DeoxycytidineGemcitabineHeme Oxygenase-1Ki-67 AntigenMDM2 protein, humanPlatelet Endothelial Cell Adhesion Molecule-1Proto-Oncogene Proteins c-mdm2ProtoporphyrinsTumor Suppressor Protein p53zinc protoporphyrin

Identifiers

PMID26726846
PMCPMC6496722
OpenAlexW2226815519

What OpenQuestion holds

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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.