Evidence map›Paper›PMID 29552197›Full record

ArticleOncology letters2018

Dynamic quantitative detection of ABC transporter family promoter methylation by MS-HRM for predicting MDR in pancreatic cancer.

Lie Yao, Jichun Gu, Yishen Mao, Xinju Zhang, Xiaoyi Wang, Chen Jin, Deliang Fu, Ji Li

Abstract read
In one paragraph

Article in Oncology letters, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Article
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  3. Review
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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.

Lie YaoDepartment of Pancreatic Surgery, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China.
Jichun GuDepartment of Pancreatic Surgery, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China.
Yishen MaoDepartment of Clinical Medicine, Fudan University, Shanghai 200082, P.R. China.
Xinju ZhangCentral Laboratory, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China.
Xiaoyi WangDepartment of Pancreatic Surgery, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China.
Chen JinDepartment of Pancreatic Surgery, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China.
Deliang FuDepartment of Pancreatic Surgery, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China.
Ji LiDepartment of Pancreatic Surgery, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The main focus of the present study was to evaluate whether ABC transporter family promoter methylation predicted multidrug resistance in gemcitabine-resistant cancer cell lines (BxPC-3/Gem and PANC-1/Gem). Using low concentrations of gemcitabine, the cell lines acquired drug resistance with different initial gemcitabine concentrations. A novel technology, methylation-sensitive high-resolution melting, was used to monitor the dynamic changes of ABC transporter family promoter methylation, including ATP binding cassette subfamily B member 1 (ABCB1), ATP binding cassette subfamily C (ABCC) and ATP binding cassette subfamily G member 2 (ABCG2) mRNA expression. It was revealed that, with elevation of initial gemcitabine concentration, expression of ABCB1, ABCC and ABCG2 mRNA and corresponding downstream proteins was increased while promoter methylation was decreased. These discoveries indicate that promoter methylation of ABCB1, ABCC and ABCG2 may be a valuable indicator of drug-resistance characteristics in BxPC-3/Gem and PANC-1/Gem cells via quantitative and simultaneous detection. These results also implied that MDR in pancreatic cancer not only arises from gene mutation, but also originates from promoter methylation.

Indexed as

ATP-binding cassette transporter familymethylation-sensitive high-resolution meltingmultidrug resistancepancreatic cancerpromoter methylation

Identifiers

PMID29552197
PMCPMC5840752

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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.