Evidence map›Paper›PMID 25288013›Full record

ArticlePharmaceutical research2015

Significantly decreased and more variable expression of major CYPs and UGTs in liver microsomes prepared from HBV-positive human hepatocellular carcinoma and matched pericarcinomatous tissues determined using an isotope label-free UPLC-MS/MS method.

Tongmeng Yan, Song Gao, Xiaojuan Peng, Jian Shi, Cong Xie, Qiang Li, Linlin Lu, Ying Wang, Fuyuan Zhou, Zhongqiu Liu and 1 more

Open access · greenAbstract read
In one paragraph

Article in Pharmaceutical research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.9field-weighted citation impact, top 6% 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

21 citing papers in PubMed, 48 citations in OpenAlex.

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  19. Multiplexed Targeted Quantitative Proteomics Predicts Hepatic Glucuronidation Potential.Drug metabolism and disposition: the biological fate of chemicals · 2015
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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

11 authors at 4 institutions in 2 countries.

Tongmeng YanInternational Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China, yantm1988@gmail.com.
Song Gao
Xiaojuan Peng
Jian Shi
Cong Xie
Qiang Li
Linlin Lu
Ying Wang
Fuyuan Zhou
Zhongqiu Liu
Ming Hu
Guangzhou University of Chinese Medicine · CNSouthern Medical University · CNUniversity of Houston · USNanfang Hospital · CN

Funding

Disposition of Flavonoids via Metabolic InterplayR01GM070737 · NIGMS · UNIVERSITY OF HOUSTON · PI HU, MING · 2006 to 2017
$3.7M
NIGMS NIH HHS GM070737NIGMS NIH HHS R01 GM070737
6 · The paper itself

Abstract

purposeTo determine the liver expression of cytochrome P450 (CYPs) and uridine 5'-diphosphate-glucuronosyltransferases (UGTs), the major phase I and II metabolism enzymes responsible for clearance and detoxification of drugs, xenobiotic and endogenous substances.

methodsA validated isotope label-free method was established for absolute and simultaneous quantification of 9 CYPs (1A2, 2A6, 2B6, 2C8, 2C9, 2C19, 2D, 2E1 and 3A4) and 5 UGTs (1A1, 1A4, 1A6, 1A9 and 2B7) in human liver microsomes using LC-MS/MS.

resultsThe LC-MS/MS method displayed excellent dynamic range (at least 250-fold) and high sensitivity for each of the signature peptides with acceptable recovery, accuracy and precision. The protein expression profile of CYP and UGT isoforms were then determined in match microsomes samples prepared from patients with HBV-positive human hepatocellular carcinoma (HCC). In the tumor microsomes, the average absolute amounts of 8 major CYP isoforms (except CYP2C19) and 3 UGT isoforms (UGT1A1, UGT1A4 and UGT2B7) were decreased significantly (p < 0.05), whereas UGT1A6 and UGT1A9 levels were unchanged (p > 0.05). In addition, among isoforms with altered expression, 6 of 8 CYP isoforms and all three UGT isoforms were much more variable in tumor microsomes. Lastly, the importance of CYP3A4 was greatly diminished whereas the importance of UGT1A6 was enhanced in tumor microsomes.

conclusionThe use of an isotope label-free absolute quantification method for the simultaneous determination of 9 CYPs and 5 UGTs in human liver microsomes reveals that expression levels of CYPs and UGTs in human liver are severely impact by HCC, which could impact drug metabolism, disposition and pharmacotherapy.

Indexed as

Chromatography, LiquidMass SpectrometryAdultAgedCarcinoma, HepatocellularCytochrome P-450 Enzyme SystemGlucuronosyltransferaseHepatitis BHumansIsoenzymesLiver NeoplasmsMaleMicrosomes, LiverMiddle AgedReproducibility of ResultsCytochrome P-450 Enzyme SystemGlucuronosyltransferaseIsoenzymes

Identifiers

PMID25288013
PMCPMC7728448
OpenAlexW2064031078

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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.