Evidence map›Paper›PMID 27547448›Full record

ArticleCell death discovery2016

Human pregnane X receptor compromises the function of p53 and promotes malignant transformation.

D Robbins, M Cherian, J Wu, T Chen

Open access · goldAbstract read
In one paragraph

Article in Cell death discovery, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

18 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Regulation of PXR and CAR by protein-protein interaction and signaling crosstalk.Expert opinion on drug metabolism & toxicology · 2016
    Review
  17. Article
  18. 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

4 authors at 1 institution in 1 country.

D RobbinsDepartment of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital , Memphis, TN, USA.
M CherianDepartment of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital , Memphis, TN, USA.
J WuDepartment of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital , Memphis, TN, USA.
T ChenDepartment of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital , Memphis, TN, USA.
St. Jude Children's Research Hospital · US

Funding

Viral Vector Technology (VVTSR)P30CA021765 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI CHARLES ROBERTS · 1985 to 2026
$166.9M
Regulation of PXR by cell cycle and phosphorylationR01GM086415 · NIGMS · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI CHEN, TAOSHENG · 2010 to 2013
$1.3M
Regulation of drug disposition by a novel microRNA-mediated pathwayR01GM110034 · NIGMS · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI CHEN, TAOSHENG · 2014 to 2016
$998k
NCI NIH HHS P30 CA021765NIGMS NIH HHS R01 GM086415NIGMS NIH HHS R01 GM110034NLM NIH HHS HHSN267200700004CNLM NIH HHS HHSN267200700004G
6 · The paper itself

Abstract

The pregnane X receptor (PXR) is well established as a nuclear receptor that has a central role in xenobiotic metabolism and disposition. However, emerging evidence suggests that PXR is also a regulator of apoptosis, promoting a malignant phenotype both in vitro and in vivo. The tumor suppressor p53 can be activated in the presence of DNA damage and induce cell cycle arrest to allow for DNA repair or, ultimately, apoptosis to suppress tumor formation. We previously identified p53 as a novel PXR-associated protein by using a mass spectrometric approach. In the current study, we identified a novel inhibitory effect of PXR on p53, revealing an anti-apoptotic function of PXR in colon carcinogenesis. PXR expression reduced p53 transactivation and the expression of its downstream target genes involved in cell cycle arrest and apoptosis by decreasing p53 recruitment to the promoter regions of these genes. Consistent with the inhibitory effect of PXR on p53, elevated PXR levels decreased doxorubicin- or nutlin-3a-mediated toxicity and promoted malignant transformation in colon cancer cells. Our findings show for the first time that PXR expression modulates p53 target gene promoter binding and contributes to the downregulation of p53 function in human colon cancer cells. These results define the functional significance of PXR expression in modulating p53-mediated mechanisms of tumor suppression.

Identifiers

PMID27547448
PMCPMC4979430
OpenAlexW2342254070

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.