Evidence map›Paper›PMID 19519282›Full record

ReviewExpert opinion on drug metabolism & toxicology2009

The role of CYP26 enzymes in retinoic acid clearance.

Jayne E Thatcher, Nina Isoherranen

Open access · greenAbstract readReview
In one paragraph

Review in Expert opinion on drug metabolism & toxicology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 117 papers.

0numbers the graph read from it
0cells of the map it votes in
117citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

117 citing papers in PubMed, 195 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. A novelFrontiers in cell and developmental biology · 2026
    Article
  5. Hepatic protein kinase Cβ antagonizing p38American journal of physiology. Gastrointestinal and liver physiology · 2025
    Article
  6. Review
  7. Article
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  12. Review
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  19. Systems Biology for Drug Target Discovery in Acute Myeloid Leukemia.International journal of molecular sciences · 2024
    Article
  20. Review

57 more citing papers are in PubMed but not listed here.

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

2 authors at 1 institution in 1 country.

Jayne E ThatcherUniversity of Washington, Department of Pharmaceutics, School of Pharmacy, Seattle, WA 98195, USA.
Nina Isoherranen
University of Washington · US

Funding

Pharmacological Sciences SupplementT32GM007750 · NIGMS · UNIVERSITY OF WASHINGTON · PI ATKINS, WILLIAM M · 1985 to 2023
$12.6M
Effects of Xenobiotics on CYP26 Activity and Retinoic Acid HomeostasisR01GM081569 · NIGMS · UNIVERSITY OF WASHINGTON · PI ISOHERRANEN, NINA · 2008 to 2012
$1.7M
NIGMS NIH HHS R01 GM081569NIGMS NIH HHS R01-GM081569NIGMS NIH HHS T32 GM007750PHS HHS T32007750
6 · The paper itself

Abstract

Retinoic acid (RA) is a critical signaling molecule that regulates gene transcription and the cell cycle. Understanding of RA signaling has increased dramatically over the past decades, but the connection between whole body RA homeostasis and gene regulation in individual cells is still unclear. It has been proposed that cytochrome P450 family 26 (CYP26) enzymes have a role in determining the cellular exposure to RA by inactivating RA in cells that do not need RA. The CYP26 enzymes have been shown to metabolize RA efficiently and they are also inducible by RA in selected systems. However, their expression patterns in different cell types and a mechanistic understanding of their function is still lacking. Based on preliminary kinetic data and protein expression levels, one may predict that if CYP26A1 is expressed in the liver at even very low levels, it will be the major RA hydroxylase in this tissue. As such, it is an attractive pharmacological target for drug development when one aims to increase circulating or cellular RA concentrations. To further the understanding of how CYP26 enzymes contribute to the regulation of RA homeostasis, structural information of the CYP26s, commercially available recombinant enzymes and good specific and sensitive antibodies are needed.

Indexed as

AnimalsCytochrome P-450 Enzyme SystemHumansIsotretinoinKineticsRetinoic Acid 4-HydroxylaseTretinoinCytochrome P-450 Enzyme SystemIsotretinoinRetinoic Acid 4-HydroxylaseTretinoin

Identifiers

PMID19519282
PMCPMC2730205
OpenAlexW1990514940

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.