Evidence map›Paper›PMID 26238339›Full record

ArticleInternational journal of cancer2016

Impact of CYP24A1 overexpression on growth of colorectal tumour xenografts in mice fed with vitamin D and soy.

Julia Höbaus, Samawansha Tennakoon, Petra Heffeter, Charlotte Groeschel, Abhishek Aggarwal, Doris M Hummel, Ursula Thiem, Rodrig Marculescu, Walter Berger, Enikö Kállay

Open access · hybridAbstract read
In one paragraph

Article in International journal of cancer, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.0field-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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
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  13. Current evidence for vitamin D in intestinal function and disease.Experimental biology and medicine (Maywood, N.J.) · 2019
    Review
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  16. Review
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 2 institutions in 1 country.

Julia HöbausDepartment of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
Samawansha TennakoonDepartment of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
Petra HeffeterDepartment of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center of the Medical University, Medical University Vienna, Vienna, Austria.
Charlotte GroeschelDepartment of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
Abhishek AggarwalDepartment of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
Doris M HummelDepartment of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
Ursula ThiemDepartment of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
Rodrig MarculescuDepartment of Laboratory Medicine, Medical University of Vienna, Vienna, Austria.
Walter BergerDepartment of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center of the Medical University, Medical University Vienna, Vienna, Austria.
Enikö KállayDepartment of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
Medical University of Vienna · ATComprehensive Cancer Center Vienna · AT

Funding

Austrian Science Fund FWF P 22200
6 · The paper itself

Abstract

Our previous studies showed that the 1,25-dihydroxyvitamin D (1,25-D3) catabolizing enzyme, 1,25-dihydoxyvitamin D 24 hydroxylase (CYP24A1) was overexpressed in colorectal tumours and its level correlated with increased proliferation. We hypothesised that cells overexpressing CYP24A1 have growth advantage and a diet rich in vitamin D and soy would restore sensitivity to the anti-tumourigenic effects of vitamin D. Soy contains genistein, a natural CYP24A1 inhibitor. To determine causality between CYP24A1 and tumour growth, we established xenografts in male SCID mice with HT29 cells stably overexpressing either GFP-tagged CYP24A1 or GFP. Mice were fed with either high (2500 IU D3/kg) or low vitamin D (100 IU D3/kg) diet in the presence or absence of soy (20% diet). In vitro, cells overexpressing CYP24A1 grew faster than controls. 1,25-D3, the active vitamin D metabolite, reduced cell number only in the presence of the CYP24A1 inhibitor VID400. Regardless of the amount of vitamin D in the diet, xenografts overexpressing CYP24A1 grew faster, were heavier and more aggressive. Soy reduced tumour volume only in the control xenografts, while the tumours overexpressing CYP24A1 were larger in the presence of dietary soy. In conclusion, we demonstrate that CYP24A1 overexpression results in increased aggressiveness and proliferative potential of colorectal tumours. Irrespective of the dietary vitamin D3, dietary soy is able to increase tumour volume when tumours overexpress CYP24A1, suggesting that combination of vitamin D3 and soy could have an anti-tumourigenic effect only if CYP24A1 levels are normal.

Indexed as

Soy FoodsAnimalsCell Line, TumorColorectal NeoplasmsDisease Models, AnimalFluorescent Antibody TechniqueHumansMaleMiceMice, SCIDReverse Transcriptase Polymerase Chain ReactionUp-RegulationVitamin DVitamin D3 24-HydroxylaseXenograft Model Antitumor AssaysVitamin DVitamin D3 24-Hydroxylasecolon cancerCYP24A1soyvitamin Dxenograft

Identifiers

PMID26238339
PMCPMC4832261
OpenAlexW2108444198

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.