Evidence map›Paper›PMID 25944280›Full record

ArticleBMC medical genomics2015

Derivation of a bronchial genomic classifier for lung cancer in a prospective study of patients undergoing diagnostic bronchoscopy.

Duncan H Whitney, Michael R Elashoff, Kate Porta-Smith, Adam C Gower, Anil Vachani, J Scott Ferguson, Gerard A Silvestri, Jerome S Brody, Marc E Lenburg, Avrum Spira

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in BMC medical genomics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
6.0field-weighted citation impact, top 3% 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

49 citing papers in PubMed, 78 citations in OpenAlex.

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  8. A review on trends in development and translation of omics signatures in cancer.Computational and structural biotechnology journal · 2024
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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

10 authors at 1 institution in 1 country.

Duncan H WhitneyAllegro Diagnostics, Corp, Maynard, MA, USA. Duncan.whitney@veracyte.com.
Michael R ElashoffElashoff Consulting, LLC, Redwood City, CA, USA. Elashoff@gmail.com.
Kate Porta-SmithAllegro Diagnostics, Corp, Maynard, MA, USA. Kate@veracyte.com.
Adam C GowerBoston University School of Medicine, Boston, MA, USA. agower@bu.edu.
Anil VachaniUniversity of Pennsylvania School of Medicine, Philadelphia, PA, USA. avachani@mail.med.upenn.edu.
J Scott FergusonUniversity of Wisconsin School of Medicine and Public Health, Madison, WI, USA. jsferguson@medicine.wisc.edu.
Gerard A SilvestriMedical University of South Carolina, Charleston, SC, USA. silvestri@musc.edu.
Jerome S BrodyBoston University School of Medicine, Boston, MA, USA. jbrody@bu.edu.
Marc E LenburgBoston University School of Medicine, Boston, MA, USA. mlenburg@bu.edu.
Avrum SpiraBoston University School of Medicine, Boston, MA, USA. aspira@bu.edu.
Medical University of South Carolina · US

Funding

Translational Research Support CoreP30ES013508 · NIEHS · UNIVERSITY OF PENNSYLVANIA · PI Rebecca A Simmons · 2006 to 2026
$35.3M
The UCLA - Boston University Lung Cancer Biomarker Development LaboratoryU01CA152751 · NCI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI DUBINETT, STEVEN M., ELASHOFF, DAVID · 2010 to 2015
$5.0M
NCI NIH HHS U01 CA152751NIEHS NIH HHS P30 ES013508
6 · The paper itself

Abstract

backgroundThe gene expression profile of cytologically-normal bronchial airway epithelial cells has previously been shown to be altered in patients with lung cancer. Although bronchoscopy is often used for the diagnosis of lung cancer, its sensitivity is imperfect, especially for small and peripheral suspicious lesions. In this study, we derived a gene expression classifier from airway epithelial cells that detects the presence of cancer in current and former smokers undergoing bronchoscopy for suspect lung cancer and evaluated its sensitivity to detect lung cancer among patients from an independent cohort.

methodsWe collected bronchial epithelial cells (BECs) from the mainstem bronchus of 299 current or former smokers (223 cancer-positive and 76 cancer-free subjects) undergoing bronchoscopy for suspected lung cancer in a prospective, multi-center study. RNA from these samples was run on gene expression microarrays for training a gene-expression classifier. A logistic regression model was built to predict cancer status, and the finalized classifier was validated in an independent cohort from a previous study.

resultsWe found 232 genes whose expression levels in the bronchial airway are associated with lung cancer. We then built a classifier based on the combination of 17 cancer genes, gene expression predictors of smoking status, smoking history, and gender, plus patient age. This classifier had a ROC curve AUC of 0.78 (95% CI, 0.70-0.86) in patients whose bronchoscopy did not lead to a diagnosis of lung cancer (n = 134). In the validation cohort, the classifier had a similar AUC of 0.81 (95% CI, 0.73-0.88) in this same subgroup (n = 118). The classifier performed similarly across a range of mass sizes, cancer histologies and stages. The negative predictive value was 94% (95% CI, 83-99%) in subjects with a non-diagnostic bronchoscopy.

conclusionWe developed a gene expression classifier measured in bronchial airway epithelial cells that is able to detect lung cancer in current and former smokers who have undergone bronchoscopy for suspicion of lung cancer. Due to the high NPV of the classifier, it could potentially inform clinical decisions regarding the need for further invasive testing in patients whose bronchoscopy is non diagnostic.

Indexed as

Gene Expression Regulation, NeoplasticGenomicsAgedArea Under CurveBronchiBronchoscopyFemaleGene Expression ProfilingHumansLung NeoplasmsMaleMiddle AgedNeoplasmsProspective StudiesRegression AnalysisROC Curve

Identifiers

PMID25944280
PMCPMC4434538
OpenAlexW1607738763

What OpenQuestion holds

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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.