Evidence map›Paper›PMID 25516145›Full record

ArticleInternational journal of molecular medicine2015

CYP1B1 enhances the resistance of epithelial ovarian cancer cells to paclitaxel in vivo and in vitro.

Zhuangyan Zhu, Yaqin Mu, Caixia Qi, Jian Wang, Guoping Xi, Juncheng Guo, Ruoran Mi, Fuxi Zhao

Open access · bronzeAbstract read
In one paragraph

Article in International journal of molecular medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.9field-weighted citation impact, top 11% 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

32 citing papers in PubMed, 87 citations in OpenAlex.

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  14. Design of Cytochrome P450 1B1 InhibitorsJournal of medicinal chemistry · 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

8 authors at 2 institutions in 1 country.

Zhuangyan ZhuDepartment of Obstetrics and Gynecology, Shanxi Datong University School of Medicine, Datong, Shanxi 037009, P.R. China.
Yaqin MuInstitute of Immunology, Shanxi Datong University School of Medicine, Datong, Shanxi 037009, P.R. China.
Caixia QiInstitute of Immunology, Shanxi Datong University School of Medicine, Datong, Shanxi 037009, P.R. China.
Jian WangInstitute of Immunology, Shanxi Datong University School of Medicine, Datong, Shanxi 037009, P.R. China.
Guoping XiInstitute of Immunology, Shanxi Datong University School of Medicine, Datong, Shanxi 037009, P.R. China.
Juncheng GuoInstitute of Immunology, Shanxi Datong University School of Medicine, Datong, Shanxi 037009, P.R. China.
Ruoran MiDepartment of Obstetrics and Gynecology, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China.
Fuxi ZhaoInstitute of Immunology, Shanxi Datong University School of Medicine, Datong, Shanxi 037009, P.R. China.
Shanxi Datong University · CNTianjin Medical University General Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ovarian cancer (OC) is the most frequent cause of mortality among gynecological malignancies, with a 5-year survival rate of approximately 30%. The standard regimen for OC therapy includes a platinum agent combined with a taxane, to which the patients frequently acquire resistance. Resistance arises from the oxidation of anticancer drugs by CYP1B1, a cytochrome P450 enzyme overexpressed in malignant OC. The aim of the present study was to determine the role of CYP1B1 expression in the drug resistance of OC to the taxane, paclitaxel (PTX). Immunohistochemical staining was used to assess CYP1B1 expression in a panel of ovarian samples (53 primary cancer samples, 14 samples of metastastic cancer, 30 benign tumor samples and 19 normal tissue samples). Semi-quantitative RT-PCR was also performed to determine CYP1B1 expression in several OC cell lines. Finally, we used proliferation and toxicity assays, as well as a mouse xenograft model using nude mice to determine whether α-naphthoflavone (ANF), a CYP1B1 specific inhibitor, reduces resistance to PTX. CYP1B1 was overexpressed in the samples from primary and metastatic loci of epithelial ovarian cancers. In some cell lines, PTX induced CYP1B1 expression, which resulted in drug resistance. Exposure to ANF reduced drug resistance and enhanced the sensitivity of OC cells to PTX in vitro and in vivo. The expression profile of CYP1B1 suggests that it has the potential to be a useful diagnostic marker and prognostic factor for malignant OC. The inhibition of CYP1B1 expression by specific agents may provide a novel therapeutic strategy for the treatment of patients resistant to PTX and may improve the prognosis of these patients.

Indexed as

Drug Resistance, NeoplasmAnimalsAntineoplastic Agents, PhytogenicCell Line, TumorCytochrome P-450 CYP1B1FemaleGene Expression Regulation, EnzymologicGene Expression Regulation, NeoplasticHeterograftsHumansMiceMice, Inbred BALB CMice, NudeNeoplasm ProteinsNeoplasm TransplantationOvarian NeoplasmsAntineoplastic Agents, PhytogenicCYP1B1 protein, humanCytochrome P-450 CYP1B1Neoplasm ProteinsPaclitaxel

Identifiers

PMID25516145
PMCPMC4292762
OpenAlexW2047297204

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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.