Evidence map›Paper›PMID 25277864›Full record

ArticleDigestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver2015

Recruited metastasis suppressor NM23-H2 attenuates expression and activity of peroxisome proliferator-activated receptor δ (PPARδ) in human cholangiocarcinoma.

Fang He, J Philippe York, Sherilyn Gordon Burroughs, Lidong Qin, Jintang Xia, De Chen, Eamonn M Quigley, Paul Webb, Gene D LeSage, Xuefeng Xia

Open access · greenAbstract read
In one paragraph

Article in Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.1field-weighted citation impact, top 45% 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

5 citing papers in PubMed, 8 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 5 institutions in 2 countries.

Fang HeThe Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
J Philippe YorkHouston Methodist Research Institute, Weill Cornell School of Medicine, Houston, TX, USA.
Sherilyn Gordon BurroughsHouston Methodist Research Institute, Weill Cornell School of Medicine, Houston, TX, USA.
Lidong QinHouston Methodist Research Institute, Weill Cornell School of Medicine, Houston, TX, USA.
Jintang XiaThe Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
De ChenThe Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Eamonn M QuigleyHouston Methodist Research Institute, Weill Cornell School of Medicine, Houston, TX, USA.
Paul WebbHouston Methodist Research Institute, Weill Cornell School of Medicine, Houston, TX, USA.
Gene D LeSageDivision of Gastroenterology and Hepatology, Department of Internal Medicine, East Tennessee State University, Johnson City, TN, USA.
Xuefeng XiaThe Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China; Houston Methodist Research Institute, Weill Cornell School of Medicine, Houston, TX, USA. Electronic address: xxia2@tmhs.org.
Cornell University · USGuangzhou Medical University · CNEast Tennessee State University · USHouston Methodist · USMethodist Hospital · US

Funding

(PQA4) Point-of-Care Test of Exposure to Hepatocellular Carcinoma Risk by V-ChipR01CA180083 · NCI · METHODIST HOSPITAL RESEARCH INSTITUTE · PI QIN, LIDONG, WU, XIFENG · 2013 to 2016
$2.1M
NCI NIH HHS NIH/NCI 1R01CA180083-01NCI NIH HHS R01 CA180083
6 · The paper itself

Abstract

backgroundPeroxisome proliferator-activated receptor δ (PPARδ) is a versatile regulator of distinct biological processes and overexpression of PPARδ in cancer may be partially related to its suppression of its own co-regulators.

aimsTo determine whether recruited suppressor proteins bind to and regulate PPARδ expression, activity and PPARδ-dependent cholangiocarcinoma proliferation.

methodsYeast two-hybrid assays were done using murine PPARδ as bait. PPARδ mRNA expression was determined by qPCR. Protein expression was measured by western blot. Immunohistochemistry and fluorescence microscopy were used to determine PPARδ expression and co-localization with NDP Kinase alpha (NM23-H2). Cell proliferation assays were performed to determine cell numbers.

resultsYeast two-hybrid screening identified NM23-H2 as a PPARδ binding protein and their interaction was confirmed. Overexpressed PPARδ or treatment with the agonist GW501516 resulted in increased cell proliferation. NM23-H2 siRNA activated PPARδ luciferase promoter activity, upregulated PPARδ RNA and protein expression and increased GW501516-stimulated CCA growth. Overexpression of NM23-H2 inhibited PPARδ luciferase promoter activity, downregulated PPARδ expression and AKT phosphorylation and reduced GW501516-stimulated CCA growth.

conclusionsWe report the novel association of NM23-H2 with PPARδ and the negative regulation of PPARδ expression by NM23-H2 binding to the C-terminal region of PPARδ. These findings provide evidence that the metastasis suppressor NM23-H2 is involved in the regulation of PPARδ-mediated proliferation.

Indexed as

Bile Ducts, IntrahepaticGene Expression Regulation, NeoplasticAnimalsBile Duct NeoplasmsBlotting, WesternCell Line, TumorCell ProliferationCholangiocarcinomaDown-RegulationHumansImmunohistochemistryMiceNM23 Nucleoside Diphosphate KinasesPPAR gammaRatsReverse Transcriptase Polymerase Chain ReactionNM23 Nucleoside Diphosphate KinasesPPAR gammaRNA, MessengerRNA, Small InterferingCholangiocarcinomaNucleoside diphosphate kinase alphaPeroxisome proliferator-activated receptor δ

Identifiers

PMID25277864
PMCPMC4537414
OpenAlexW2093594164

What OpenQuestion holds

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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.