Evidence map›Paper›PMID 23423976›Full record

ArticleCancer research2013

CYP24A1 and CYP27B1 polymorphisms modulate vitamin D metabolism in colon cancer cells.

Elizabeth T Jacobs, Chad Van Pelt, Ryan E Forster, Wasiq Zaidi, Elizabeth A Hibler, Michael A Galligan, Mark R Haussler, Peter W Jurutka

Abstract read
In one paragraph

Article in Cancer research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed, 1 pooled it
5.6field-weighted citation impact, top 4% 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

58 citing papers in PubMed, 1 synthesis or guideline pooled it, 84 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Article
  6. Review
  7. Identification and Association ofCurrent issues in molecular biology · 2025
    Article
  8. Review
  9. The vitamin DFrontiers in immunology · 2025
    Review
  10. Article
  11. Frontiers in endocrinology · 2025
    Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
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

8 authors at 2 institutions in 1 country.

Elizabeth T JacobsUniversity of Arizona Cancer Center, University of Arizona, Tucson, AZ, USA.
Chad Van Pelt
Ryan E Forster
Wasiq Zaidi
Elizabeth A Hibler
Michael A Galligan
Mark R Haussler
Peter W Jurutka
Arizona State University · USUniversity of Arizona · US

Funding

VITAMIN AP30CA023074 · NCI · UNIVERSITY OF ARIZONA · PI Dan Theodorescu · 1985 to 2026
$110.2M
WHEAT BRAN FIBER SUPPLEMENTS ON THE RECURRENCE OF COLONIC ADENOMASP01CA041108 · NCI · UNIVERSITY OF ARIZONA · PI HAMILTON, STANLEY R. · 1986 to 2009
$38.8M
Cancer Prevention and Control Translational ResearchR25CA078447 · NCI · UNIVERSITY OF ARIZONA · PI ALBERTS, DAVID SAMUEL · 1998 to 2014
$7.6M
Vitamin D Status, Genetic Variation in Vitamin D Signaling and Metabolism, and RiR01CA140285 · NCI · UNIVERSITY OF ARIZONA · PI JACOBS, ELIZABETH T, JURUTKA, PETER W · 2010 to 2014
$1.5M
NCI NIH HHS CA-23074NCI NIH HHS CA-41108NCI NIH HHS P01 CA041108NCI NIH HHS P30 CA023074NCI NIH HHS R01 CA140285NCI NIH HHS R01CA140285NCI NIH HHS R25 CA078447
6 · The paper itself

Abstract

Vitamin D is a well-studied agent for cancer chemoprevention and treatment. Its chief circulating metabolite, 25-hydroxyvitamin D, is converted into the active hormone 1,25-dihydroxyvitamin D (1,25D) by the cytochrome P450 enzyme CYP27B1 in kidney and other tissues. 1,25D is then deactivated by CYP24A1 and ultimately catabolized. Colorectal carcinoma cells express CYP27B1 and CYP24A1 that locally regulate 1,25D with potential implications for its impact on carcinogenesis. While 1,25D inhibits cancer growth, the effects of polymorphic variations in genes encoding proteins involved in 1,25D homeostasis are poorly understood. Using an RXR-VDR mammalian two-hybrid (M2H) biologic assay system, we measured vitamin D metabolite uptake and activation of the vitamin D receptor (VDR) pathway in colon cancer cells that expressed one of five CYP27B1 single-nucleotide polymorphisms (SNP) or four CYP24A1 SNPs. Compared with the wild-type control, four of five CYP27B1 SNPs reduced enzymatic activity, whereas one (V166L) increased activity. For CYP24A1, all tested SNPs reduced enzyme activity. Quantitative real-time PCR analyses supported the results of M2H experiments. The observed SNP-directed variation in CYP functionality indicated that vitamin D homeostasis is complex and may be influenced by genetic factors. A comprehensive understanding of 1,25D metabolism may allow for a more personalized approach toward treating vitamin D-related disorders and evaluating risk for carcinogenesis.

Indexed as

Polymorphism, Single Nucleotide25-Hydroxyvitamin D3 1-alpha-HydroxylaseCell Line, TumorColonic NeoplasmsEnzyme ActivationHumansSteroid HydroxylasesTranscription, GeneticVitamin DVitamin D3 24-Hydroxylase25-Hydroxyvitamin D3 1-alpha-HydroxylaseCYP24A1 protein, humanSteroid HydroxylasesVitamin DVitamin D3 24-Hydroxylase

Identifiers

PMID23423976
PMCPMC3630267
OpenAlexW1992758539

What OpenQuestion holds

Textmetadata
LicenceTDM
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.