Evidence map›Paper›PMID 33738340›Full record

ArticleMolecular therapy oncolytics2021

A polygenic methylation prediction model associated with response to chemotherapy in epithelial ovarian cancer.

Lanbo Zhao, Sijia Ma, Linconghua Wang, Yiran Wang, Xue Feng, Dongxin Liang, Lu Han, Min Li, Qiling Li

Open access · goldAbstract read
In one paragraph

Article in Molecular therapy oncolytics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 24% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
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  3. Article
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  5. Article
  6. Review
  7. Article
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

9 authors at 2 institutions in 1 country.

Lanbo ZhaoDepartment of Obstetrics and Gynecology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China.
Sijia MaDepartment of Obstetrics and Gynecology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China.
Linconghua WangHunan Provincial Key Lab on Bioinformatics, School of Computer Science and Engineering, Central South University, Changsha 410083, Hunan, China.
Yiran WangDepartment of Obstetrics and Gynecology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China.
Xue FengDepartment of Obstetrics and Gynecology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China.
Dongxin LiangDepartment of Obstetrics and Gynecology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China.
Lu HanDepartment of Obstetrics and Gynecology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China.
Min LiHunan Provincial Key Lab on Bioinformatics, School of Computer Science and Engineering, Central South University, Changsha 410083, Hunan, China.
Qiling LiDepartment of Obstetrics and Gynecology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China.
First Affiliated Hospital of Xi'an Jiaotong University · CNCentral South University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To identify potential aberrantly differentially methylated genes (DMGs) correlated with chemotherapy response (CR) and establish a polygenic methylation prediction model of CR in epithelial ovarian cancer (EOC), we accessed 177 (47 chemo-sensitive and 130 chemo-resistant) samples corresponding to three DNA-methylation microarray datasets from the Gene Expression Omnibus and 306 (290 chemo-sensitive and 16 chemo-resistant) samples from The Cancer Genome Atlas (TCGA) database. DMGs associated with chemotherapy sensitivity and chemotherapy resistance were identified by several packages of R software. Pathway enrichment and protein-protein interaction (PPI) network analyses were constructed by Metascape software. The key genes containing mRNA expressions associated with methylation levels were validated from the expression dataset by the GEO2R platform. The determination of the prognostic significance of key genes was performed by the Kaplan-Meier plotter database. The key genes-based polygenic methylation prediction model was established by binary logistic regression. Among accessed 483 samples, 457 (182 hypermethylated and 275 hypomethylated) DMGs correlated with chemo resistance. Twenty-nine hub genes were identified and further validated. Three genes, anterior gradient 2 (AGR2), heat shock-related 70-kDa protein 2 (HSPA2), and acetyltransferase 2 (ACAT2), showed a significantly negative correlation between their methylation levels and mRNA expressions, which also corresponded to prognostic significance. A polygenic methylation prediction model (0.5253 cutoff value) was established and validated with 0.659 sensitivity and 0.911 specificity.

Indexed as

ACAT2AGR2bioinformaticschemotherapy responseDNA methylationHSPA2ovarian cancerprediction model

Identifiers

PMID33738340
PMCPMC7943968
OpenAlexW3129850383

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.