Evidence map›Paper›PMID 29360996›Full record

ArticleBioinformatics (Oxford, England)2018

Feature specific quantile normalization enables cross-platform classification of molecular subtypes using gene expression data.

Jennifer M Franks, Guoshuai Cai, Michael L Whitfield

Abstract read
In one paragraph

Article in Bioinformatics (Oxford, England), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 3 pooled it
–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

46 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
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  10. Metabolic differentiation of brushtail possum populations resistant and susceptible to plant toxins revealed via differential gene expression.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2025
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  14. Molecular Subtypes of High-Grade Serous Ovarian Cancer across Racial Groups and Gene Expression Platforms.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2024
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  19. Learning Individual Survival Models from PanCancer Whole Transcriptome Data.Clinical cancer research : an official journal of the American Association for Cancer Research · 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

3 authors.

Jennifer M FranksDepartment of Molecular and Systems Biology.
Guoshuai CaiDepartment of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC, 29208, USA.
Michael L WhitfieldDepartment of Molecular and Systems Biology.

Funding

Translational studies for identifying and targeting novel pathways in systemic sclerosis pathogenesisP50AR060780 · NIAMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI DOMSIC, ROBYN THERESE · 2011 to 2021
$14.9M
Rheumatic Diseases Research Core CentersP30AR061271 · NIAMS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI WHITFIELD, MICHAEL L · 2011 to 2015
$3.1M
NIAMS NIH HHS P30 AR061271NIAMS NIH HHS P50 AR060780Wellcome Trust
6 · The paper itself

Abstract

Motivation: Molecular subtypes of cancers and autoimmune disease, defined by transcriptomic profiling, have provided insight into disease pathogenesis, molecular heterogeneity and therapeutic responses. However, technical biases inherent to different gene expression profiling platforms present a unique problem when analyzing data generated from different studies. Currently, there is a lack of effective methods designed to eliminate platform-based bias. We present a method to normalize and classify RNA-seq data using machine learning classifiers trained on DNA microarray data and molecular subtypes in two datasets: breast invasive carcinoma (BRCA) and colorectal cancer (CRC). Results: Multiple analyses show that feature specific quantile normalization (FSQN) successfully removes platform-based bias from RNA-seq data, regardless of feature scaling or machine learning algorithm. We achieve up to 98% accuracy for BRCA data and 97% accuracy for CRC data in assigning molecular subtypes to RNA-seq data normalized using FSQN and a support vector machine trained exclusively on DNA microarray data. We find that maximum accuracy was achieved when normalizing RNA-seq datasets that contain at least 25 samples. FSQN allows comparison of RNA-seq data to existing DNA microarray datasets. Using these techniques, we can successfully leverage information from existing gene expression data in new analyses despite different platforms used for gene expression profiling. Availability and implementation: FSQN has been submitted as an R package to CRAN. All code used for this study is available on Github (https://github.com/jenniferfranks/FSQN). Contact: michael.l.whitfield@dartmouth.edu. Supplementary information: Supplementary data are available at Bioinformatics online.

Indexed as

Support Vector MachineBreast NeoplasmsColonic NeoplasmsColorectal NeoplasmsFemaleGene Expression ProfilingGene Expression Regulation, NeoplasticHumansNeoplasmsOligonucleotide Array Sequence AnalysisSequence Analysis, RNASoftware

Identifiers

PMID29360996
PMCPMC5972664

What OpenQuestion holds

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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.