Evidence map›Paper›PMID 22923690›Full record

ArticleDrug metabolism and disposition: the biological fate of chemicals2012

Cytochrome P450 3A5 plays a prominent role in the oxidative metabolism of the anti-human immunodeficiency virus drug maraviroc.

Yanhui Lu, Craig W Hendrix, Namandjé N Bumpus

Abstract read
In one paragraph

Article in Drug metabolism and disposition: the biological fate of chemicals, 2012. 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
–field-weighted citation impact
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.

  1. Trial
  2. Article
  3. Article
  4. Maraviroc Population Pharmacokinetics Within the First 6 Weeks of Life.The Pediatric infectious disease journal · 2022
    Article
  5. Article
  6. Article
  7. Article
  8. Pharmacogenomics of Antiretroviral Drug Metabolism and Transport.Annual review of pharmacology and toxicology · 2021
    Review
  9. Review
  10. Interindividual Variation in CYP3A Activity Influences Lapatinib Bioactivation.Drug metabolism and disposition: the biological fate of chemicals · 2019
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Maraviroc: a review of its use in HIV infection and beyond.Drug design, development and therapy · 2015
    Review
  17. CYP3A5 genotype impacts maraviroc concentrations in healthy volunteers.Drug metabolism and disposition: the biological fate of chemicals · 2014
    Article
  18. 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

3 authors.

Yanhui LuDepartment of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine, 725 N. Wolfe St., WBSB 302, Baltimore, MD 21205, USA.
Craig W Hendrix
Namandjé N Bumpus

Funding

LC: HIV Prevention Trials Network - Laboratory Support for the SARS-CoV-2 Seroprevalence Study (CoVPN 5002)UM1AI068613 · NIAID · JOHNS HOPKINS UNIVERSITY · PI SUSAN H ESHLEMAN, Mark A Marzinke · 2011 to 2026
$100.2M
HIV Prevention Trials Network: Network LaboratoryU01AI068613 · NIAID · JOHNS HOPKINS UNIVERSITY · PI ESHLEMAN, SUSAN H · 2006 to 2010
$16.5M
Applied Biosystems API5500 Triple Quadrupole Mass SpectrometerS10RR027733 · NCRR · JOHNS HOPKINS UNIVERSITY · PI HUBBARD, WALTER C · 2010 to 2010
$350k
NCRR NIH HHS 1S10-RR027733NCRR NIH HHS S10 RR027733NIAID NIH HHS 5UM1-AI068613NIAID NIH HHS UM1 AI068613
6 · The paper itself

Abstract

Maraviroc is an anti-human immunodeficiency virus drug that acts by blocking viral entry into target cells. With use of ultra-performance liquid chromatography-mass spectrometry several monooxygenated, dioxygenated, and glucuronidated metabolites of maraviroc were identified both in vitro and in vivo. Characterization of the enzymes involved in the production of these metabolites determined that cytochrome P450 3A5 was the principal enzyme responsible for the formation of an abundant metabolite of maraviroc that resulted from oxygenation of the dichlorocyclohexane ring. For the formation of this metabolite, the V(max) values for CYP3A4 and CYP3A5 were 0.04 and 0.93 pmol · min⁻¹ · pmol P450⁻¹, and the K(m) values were 11.1 and 48.9 μM, respectively. Furthermore, human liver microsomes isolated from donors homozygous for the loss-of-function CYP3A5*3 allele exhibited a 79% decrease in formation of this metabolite compared with those homozygous for the wild-type CYP3A5*1 allele. To probe which divergent residues between CYP3A4 and CYP3A5 might play a role in the differential activities of these enzymes toward maraviroc, mutations were introduced into both enzymes and metabolism of maraviroc was measured. A CYP3A5 L57F mutant exhibited a 61% decrease in the formation of this metabolite, whereas formation by a CYP3A4 F57L mutant was increased by 337% compared with that of the wild type. Taken together, these data provide novel insights into the biotransformation of maraviroc as well as the potential role of CYP3A4 and CYP3A5 divergent residues in the enzymatic activities of these two highly homologous enzymes.

Indexed as

AllelesAmino Acid SequenceAnimalsChlorocebus aethiopsChromatography, High Pressure LiquidCOS CellsCyclohexanesCytochrome P-450 CYP3AHIV Fusion InhibitorsHumansHydroxylationMaleMaravirocMass SpectrometryMetabolic Detoxication, Phase IMicrosomes, LiverCyclohexanesCYP3A4 protein, humanCYP3A5 protein, humanCytochrome P-450 CYP3AHIV Fusion InhibitorsMaravirocTriazoles

Identifiers

PMID22923690
PMCPMC3500548

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Registered trials

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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.