Evidence map›Paper›PMID 32189106›Full record

ArticleJournal of cancer research and clinical oncology2020

Downregulation of SFRP1 is a protumorigenic event in hepatoblastoma and correlates with beta-catenin mutations.

Ivonne Regel, Melanie Eichenmüller, Ujjwal Mukund Mahajan, Beate Hagl, Simone Benitz, Beate Häberle, Christian Vokuhl, Dietrich von Schweinitz, Roland Kappler

Open access · hybridAbstract read
In one paragraph

Article in Journal of cancer research and clinical oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 20% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

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  9. The Curious Case of the HepG2 Cell Line: 40 Years of Expertise.International journal of molecular sciences · 2021
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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

9 authors at 4 institutions in 2 countries.

Ivonne RegelDepartment of Medicine II, University Hospital, LMU Munich, Munich, Germany.
Melanie EichenmüllerDepartment of Pediatric Surgery, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University Munich, LMU Munich, Lindwurmstr. 2a, 80337, Munich, Germany.
Ujjwal Mukund MahajanDepartment of Medicine II, University Hospital, LMU Munich, Munich, Germany.
Beate HaglDepartment of Pediatric Surgery, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University Munich, LMU Munich, Lindwurmstr. 2a, 80337, Munich, Germany.
Simone BenitzDepartment of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, USA.
Beate HäberleDepartment of Pediatric Surgery, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University Munich, LMU Munich, Lindwurmstr. 2a, 80337, Munich, Germany.
Christian VokuhlInstitute of Pathology, University Hospital Bonn, Bonn, Germany.
Dietrich von SchweinitzDepartment of Pediatric Surgery, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University Munich, LMU Munich, Lindwurmstr. 2a, 80337, Munich, Germany.
Roland KapplerDepartment of Pediatric Surgery, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University Munich, LMU Munich, Lindwurmstr. 2a, 80337, Munich, Germany. roland.kappler@med.uni-muenchen.de.
Ludwig-Maximilians-Universität München · DEHelmholtz Zentrum München · DEUniversity Hospital Bonn · DEUniversity of Michigan–Ann Arbor · US

Funding

Deutsche Forschungsgemeinschaft KA2274/3-1
6 · The paper itself

Abstract

backgroundHepatoblastoma (HB) and pediatric hepatocellular carcinoma (HCC) are the most common malignant liver tumors in childhood. Both tumor types exhibit genetic and epigenetic alterations in the WNT/β-catenin signaling pathway, which is a key regulator of liver progenitor cells in embryonic development. The tumors demonstrate a high rate of β-catenin mutations and gene expression changes of several WNT antagonists. However, the role of the WNT inhibitory factor secreted frizzled-related protein 1 (SFRP1) has not been addressed in pediatric liver cancer so far.

resultsIn our study, we investigated the gene expression level, DNA methylation status and functional relevance of SFRP1 in HB cell lines and in pediatric liver tumor patient samples. SFRP1 was downregulated due to DNA promoter methylation in all tested HB cell lines. Overexpression of SFRP1 in HB cell lines diminished tumor cell proliferation, colony formation and migration potential. In addition, the SFRP1-expressing HB cell lines showed reduced WNT/β-catenin signaling pathway activity and decreased expression of WNT target genes. To evaluate the utility of SFRP1 as a biomarker in pediatric liver cancer, we determined the gene expression level and DNA methylation status of SFRP1 in 45 pediatric liver tumor patient samples. The correlation analysis of different clinical parameters and tumor characteristics revealed a significant correlation of reduced SFRP1 expression with the presence of mutant β-catenin. The methylation status of SFRP1 was furthermore associated to a pediatric liver tumor type with HCC-like characteristics, TERT mutations and an older age at diagnosis.

conclusionAltogether, our data demonstrate that the epigenetic suppression of the WNT/β-catenin antagonist SFRP1 has an important impact on the malignant behavior of HB cells. Although SFRP1 methylation is a common event in HCC-like pediatric liver tumors, its potential as a prognostic or diagnostic biomarker needs to be further investigated.

Indexed as

MutationAgedbeta CateninCell Line, TumorDNA MethylationDown-RegulationFemaleHepatoblastomaHep G2 CellsHumansIntercellular Signaling Peptides and ProteinsLiver NeoplasmsMaleMembrane ProteinsMiddle AgedPromoter Regions, Geneticbeta CateninCTNNB1 protein, humanIntercellular Signaling Peptides and ProteinsMembrane ProteinsSecreted Frizzled-Related ProteinsSFRP1 protein, humanAPCDKK1DNA methylationEpigeneticsHepatoblastomaHepatocellular carcinomaPediatric liver cancerSFRP1WIF1WNT signaling

Identifiers

PMID32189106
PMCPMC7142044
OpenAlexW3011815811

What OpenQuestion holds

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LicenceCC BY
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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.