Evidence map›Paper›PMID 31236938›Full record

ArticleBritish journal of pharmacology2019

Altered cytochrome 2E1 and 3A P450-dependent drug metabolism in advanced ovarian cancer correlates to tumour-associated inflammation.

Sebastian Trousil, Patrizia Lee, Robert J Edwards, Lynn Maslen, Jingky P Lozan-Kuehne, Ramya Ramaswami, Eric O Aboagye, Stephen Clarke, Christopher Liddle, Rohini Sharma

Open access · bronzeAbstract readControlled Clinical Trial
In one paragraph

Article in British journal of pharmacology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 13% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

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  11. Drug-disease interaction: Clinical consequences of inflammation on drugs action and disposition.Journal of pharmacy & pharmaceutical sciences : a publication of the Canadian Society for Pharmaceutical Sciences, Societe canadienne des sciences pharmaceutiques · 2023
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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

10 authors at 3 institutions in 3 countries.

Sebastian TrousilDepartment of Surgery and Cancer, Imperial College London, London, UK.
Patrizia LeeDepartment of Surgery and Cancer, Imperial College London, London, UK.
Robert J EdwardsDivision of Experimental Medicine, Imperial College London, London, UK.
Lynn MaslenDepartment of Surgery and Cancer, Imperial College London, London, UK.
Jingky P Lozan-KuehneDepartment of Surgery and Cancer, Imperial College London, London, UK.ORCID 0000-0002-7372-0725
Ramya RamaswamiDepartment of Surgery and Cancer, Imperial College London, London, UK.
Eric O AboagyeDepartment of Surgery and Cancer, Imperial College London, London, UK.
Stephen ClarkeDepartment of Medical Oncology, Royal North Shore Hospital, St Leonards, NSW, Australia.
Christopher LiddleStorr Liver Unit, Westmead Millennium Institute, University of Sydney, Westmead, Westmead, NSW, Australia.
Rohini SharmaDepartment of Surgery and Cancer, Imperial College London, London, UK.ORCID 0000-0003-2441-549X
Imperial College London · GBRoyal North Shore Hospital · AUThe University of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposePrevious work has focussed on changes in drug metabolism caused by altered activity of CYP3A in the presence of inflammation and, in particular, inflammation associated with malignancy. However, drug metabolism involves a number of other P450s, and therefore, we assessed the effect of cancer-related inflammation on multiple CYP enzymes using a validated drug cocktail. EXPERIMENTAL APPROACH: Patients with advanced stage ovarian cancer and healthy volunteers were recruited. Participants received caffeine, chlorzoxazone, dextromethorphan, and omeprazole as in vivo probes for CYP1A2, CYP2E1, CYP2D6, CYP3A, and CYP2C19. Blood was collected for serum C-reactive protein and cytokine analysis. KEY

resultsCYP2E1 activity was markedly up-regulated in cancer (6-hydroxychlorzoxazone/chlorzoxazone ratio of 1.30 vs. 2.75), while CYP3A phenotypic activity was repressed in cancer (omeprazole sulfone/omeprazole ratio of 0.23 vs. 0.49). Increased activity of CYP2E1 was associated with raised serum levels of IL-6, IL-8, and TNF-α. Repression of CYP3A correlated with raised levels of serum C-reactive protein, IL-6, IL-8, and TNF-α. CONCLUSIONS AND IMPLICATIONS: CYP enzyme activity is differentially affected by the presence of tumour-associated inflammation, affecting particularly CYP2E1- and CYP3A-mediated drug metabolism, and may have profound implications for drug development and prescribing in oncological settings.

Indexed as

AdultAgedAged, 80 and overCaffeineChlorzoxazoneC-Reactive ProteinCytochrome P-450 Enzyme SystemCytokinesDextromethorphanFemaleHumansInflammationMiddle AgedOmeprazoleOvarian Neoplasms6-hydroxychlorzoxazoneCaffeineChlorzoxazoneC-Reactive ProteinCytochrome P-450 Enzyme SystemCytokinesDextromethorphanOmeprazoleomeprazole sulfone

Identifiers

PMID31236938
PMCPMC6715602
OpenAlexW2955359262

What OpenQuestion holds

Textmetadata
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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.