Evidence map›Paper›PMID 31752667›Full record

ArticleBMC genomics2019

A qualitative transcriptional signature for the histological reclassification of lung squamous cell carcinomas and adenocarcinomas.

Xin Li, Gengen Shi, Qingsong Chu, Wenbin Jiang, Yixin Liu, Sainan Zhang, Zheyang Zhang, Zixin Wei, Fei He, Zheng Guo and 1 more

Abstract read
In one paragraph

Article in BMC genomics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

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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

11 citing papers in PubMed.

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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

11 authors.

Xin LiCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China.
Gengen ShiCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China.
Qingsong ChuFujian Key Laboratory for Translational Research, Institute of Translational Medicine, Fujian Medical University, Fuzhou, 350001, China.
Wenbin JiangCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China.
Yixin LiuCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China.
Sainan ZhangCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China.
Zheyang ZhangCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China.
Zixin WeiDepartment of Medical Oncology, Harbin Medical University Cancer hospital, Harbin, 150081, China.
Fei HeKey Laboratory of Ministry of Education for Gastrointestinal Cancer, Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, 350001, China.
Zheng GuoCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China. guoz@ems.hrbmu.edu.cn.
Lishuang QiCollege of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China. qilishuang7@ems.hrbmu.edu.cn.

Funding

National Natural Science Foundation of China 61701143National Natural Science Foundation of China 81372213National Natural Science Foundation of China 81572935the Fundamental Research Funds for the Provincial Universities 2017JCZX48the Joint Scientific and Technology Innovation Fund of Fujian Province 2016Y9044
6 · The paper itself

Abstract

backgroundTargeted therapy for non-small cell lung cancer is histology dependent. However, histological classification by routine pathological assessment with hematoxylin-eosin staining and immunostaining for poorly differentiated tumors, particularly those from small biopsies, is still challenging. Additionally, the effectiveness of immunomarkers is limited by technical inconsistencies of immunostaining and lack of standardization for staining interpretation.

resultsUsing gene expression profiles of pathologically-determined lung adenocarcinomas and squamous cell carcinomas, denoted as pADC and pSCC respectively, we developed a qualitative transcriptional signature, based on the within-sample relative gene expression orderings (REOs) of gene pairs, to distinguish ADC from SCC. The signature consists of two genes, KRT5 and AGR2, which has the stable REO pattern of KRT5 > AGR2 in pSCC and KRT5 < AGR2 in pADC. In the two test datasets with relative unambiguous NSCLC types, the apparent accuracy of the signature were 94.44 and 98.41%, respectively. In the other integrated dataset for frozen tissues, the signature reclassified 4.22% of the 805 pADC patients as SCC and 12% of the 125 pSCC patients as ADC. Similar results were observed in the clinical challenging cases, including FFPE specimens, mixed tumors, small biopsy specimens and poorly differentiated specimens. The survival analyses showed that the pADC patients reclassified as SCC had significantly shorter overall survival than the signature-confirmed pADC patients (log-rank p = 0.0123, HR = 1.89), consisting with the knowledge that SCC patients suffer poor prognoses than ADC patients. The proliferative activity, subtype-specific marker genes and consensus clustering analyses also supported the correctness of our signature.

conclusionsThe non-subjective qualitative REOs signature could effectively distinguish ADC from SCC, which would be an auxiliary test for the pathological assessment of the ambiguous cases.

Indexed as

Adenocarcinoma of LungAgedCarcinoma, Squamous CellFemaleHumansKeratin-5Lung NeoplasmsMaleMiddle AgedMucoproteinsOncogene ProteinsTranscriptomeAGR2 protein, humanKeratin-5KRT5 protein, humanMucoproteinsOncogene ProteinsHistological subtypeNon-small cell lung cancerPathological assessmentQualitative transcriptional signatureRelative gene expression orderings

Identifiers

PMID31752667
PMCPMC6868745

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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.