Evidence map›Paper›PMID 23160467›Full record

ArticleBlood2013

The constitutive androstane receptor is a novel therapeutic target facilitating cyclophosphamide-based treatment of hematopoietic malignancies.

Duan Wang, Linhao Li, Hui Yang, Stephen S Ferguson, Maria R Baer, Ronald B Gartenhaus, Hongbing Wang

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
6.4field-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

30 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Clinical Relevance of the Constitutive Androstane Receptor.Drug metabolism and disposition: the biological fate of chemicals · 2022
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Ser100-Phosphorylated RORMolecular pharmacology · 2020
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Insights into CYP2B6-mediated drug-drug interactions.Acta pharmaceutica Sinica. B · 2016
    Review
  16. Small-molecule modulators of PXR and CAR.Biochimica et biophysica acta · 2016
    Review
  17. Article
  18. Article
  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

7 authors at 2 institutions in 1 country.

Duan WangDepartment of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD 21201, USA.
Linhao Li
Hui Yang
Stephen S Ferguson
Maria R Baer
Ronald B Gartenhaus
Hongbing Wang
University of Maryland, Baltimore · USUniversity of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center

Funding

Regulation of CYP2B6 in Human LIverR01DK061652 · NIDDK · UNIVERSITY OF NORTH CAROLINA CHAPEL HILL · PI WANG, HONGBING · 2003 to 2015
$3.7M
Role of constitutive androstane receptor in cyclophosphamide-based chemotherapyR01GM107058 · NIGMS · UNIVERSITY OF MARYLAND BALTIMORE · PI WANG, HONGBING · 2013 to 2016
$1.2M
NIDDK NIH HHS R01 DK061652NIGMS NIH HHS R01 GM107058
6 · The paper itself

Abstract

Cyclophosphamide (CPA) is one of the most widely used chemotherapeutic prodrugs that undergoes hepatic bioactivation mediated predominantly by cytochrome P450 (CYP) 2B6. Given that the CYP2B6 gene is primarily regulated by the constitutive androstane receptor (CAR, NR1I3), we hypothesize that selective activation of CAR can enhance systemic exposure of the pharmacologically active 4-hydroxycyclophosamide (4-OH-CPA), with improved efficacy of CPA-based chemotherapy. In this study, we have developed a unique human primary hepatocyte (HPH)-leukemia cell coculture model; the chemotherapeutic effects of CPA on leukemia cells can be directly investigated in vitro in a cellular environment where hepatic metabolism was well maintained. Our results demonstrated that activation of CAR preferentially induces the expression of CYP2B6 over CYP3A4 in HPHs, although endogenous expression of these enzymes in leukemia cells remains negligible. Importantly, coadministration of CPA with a human CAR activator led to significantly enhanced cytotoxicity in leukemia cells by inducing the apoptosis pathways, without concomitant increase in the off-target hepatotoxicity. Associated with the enhanced antitumor activity, a time and concentration-dependent increase in 4-OH-CPA formation was observed in the coculture system. Together, our findings offer proof of concept that CAR as a novel molecular target can facilitate CPA-based chemotherapy by selectively promoting its bioactivation.

Indexed as

Antineoplastic AgentsAryl Hydrocarbon HydroxylasesBlotting, WesternCell Line, TumorChromatography, LiquidCoculture TechniquesConstitutive Androstane ReceptorCyclophosphamideCytochrome P-450 CYP2B6Cytochrome P-450 CYP3ADNA FragmentationFlow CytometryHepatocytesHumansLeukemiaMass SpectrometryAntineoplastic AgentsAryl Hydrocarbon HydroxylasesConstitutive Androstane ReceptorCyclophosphamideCYP2B6 protein, humanCYP3A4 protein, humanCytochrome P-450 CYP2B6Cytochrome P-450 CYP3ANR1I3 protein, humanOxidoreductases, N-DemethylatingProdrugsReceptors, Cytoplasmic and Nuclear

Identifiers

PMID23160467
PMCPMC3544115
OpenAlexW2066698549

What OpenQuestion holds

Textmetadata
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.