Evidence map›Paper›PMID 24362577›Full record

ArticleInternational journal of molecular sciences2013

Chimeric mice with humanized livers: a unique tool for in vivo and in vitro enzyme induction studies.

Masakazu Kakuni, Chihiro Yamasaki, Asato Tachibana, Yasumi Yoshizane, Yuji Ishida, Chise Tateno

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
6.1field-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

25 citing papers in PubMed, 50 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

Masakazu Kakuni
Chihiro Yamasaki
Asato Tachibana
Yasumi Yoshizane
Yuji Ishida
Chise TatenoPhoenixBio Co., Ltd., 3-4-1, Kagamiyama, Higashihiroshima, Hiroshima 739-0046, Japan. chise.mukaidani@phoenixbio.co.jp.
PhoenixBio (Japan) · JPHiroshima University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We performed in vivo and in vitro studies to determine the induction of human cytochrome P450 (CYP) using chimeric mice with humanized liver (PXB-mice®) and human hepatocytes isolated from the PXB-mice (PXB-cells), which were derived from the same donor. For the in vivo study, PXB-mice were injected with 3-methylcholanthrene (3-MC, 2 or 20 mg/kg) or rifampicin (0.1 or 10 mg/kg) for four days. For the in vitro study, PXB-cells were incubated with 3-MC (10, 50, or 250 ng/mL) or with rifampicin (5 or 25 μg/mL). The CYP1A1 and 1A2, and CYP3A4 mRNA expression levels increased significantly in the PXB-mouse livers with 20 mg/kg of 3-MC (Cmax, 12.2 ng/mL), and 10 mg/kg rifampicin (Cmax, 6.9 µg/mL), respectively. The CYP1A1 mRNA expression level increased significantly in PXB-cells with 250 ng/mL of 3-MC, indicating lower sensitivity than in vivo. The CYP1A2 and CYP3A4 mRNA expression levels increased significantly with 50 ng/mL of 3-MC, and 5 μg/mL of rifampicin, respectively, which indicated that the sensitivities were similar between in vivo and in vitro studies. In conclusion, PXB-mice and PXB-cells provide a robust model as an intermediate between in vivo and in vitro human metabolic enzyme induction studies.

Indexed as

AnimalsChimeraCytochrome P-450 CYP1A1Cytochrome P-450 CYP1A2Cytochrome P-450 CYP3AEnzyme InductionHalf-LifeHepatocytesHumansImmunohistochemistryKeratin-18Keratin-8LiverMethylcholanthreneMiceRifampinCytochrome P-450 CYP1A1Cytochrome P-450 CYP1A2Cytochrome P-450 CYP3AKeratin-18Keratin-8MethylcholanthreneRifampinRNA, Messenger

Identifiers

PMID24362577
PMCPMC3907798
OpenAlexW2071832730

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.