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A proteogenomic profile of early lung adenocarcinomas by protein co-expression network and genomic alteration analysis
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A proteogenomic profile of early lung adenocarcinomas by protein co-expression network and genomic alteration analysis
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Journal Article
A proteogenomic profile of early lung adenocarcinomas by protein co-expression network and genomic alteration analysis
2020
Overview
The tumourigenesis of early lung adenocarcinomas, including adenocarcinoma in situ (AIS), minimally invasive adenocarcinoma (MIA), and lepidic predominant invasive adenocarcinoma (LPA), remains unclear. This study aimed to capture disease-related molecular networks characterising each subtype and tumorigenesis by assessing 14 lung adenocarcinomas (AIS, five; MIA, five; LPA, four). Protein–protein interaction networks significant to the three subtypes were elucidated by weighted gene co-expression network analysis and pairwise G-statistics based analysis. Pathway enrichment analysis for AIS involved extracellular matrix proteoglycans and neutrophil degranulation pathway relating to tumour growth and angiogenesis. Whereas no direct networks were found for MIA, proteins significant to MIA were involved in oncogenic transformation, epithelial-mesenchymal transition, and detoxification in the lung. LPA was associated with pathways of HSF1-mediated heat shock response regulation, DNA damage repair, cell cycle regulation, and mitosis. Genomic alteration analysis suggested that LPA had both somatic mutations with loss of function and copy number gains more frequent than MIA. Oncogenic drivers were detected in both MIA and LPA, and also LPA had a higher degree of copy number loss than MIA. Our findings may help identifying potential therapeutic targets and developing therapeutic strategies to improve patient outcomes.
Publisher
Nature Publishing Group UK,Nature Publishing Group
Subject
/ 631/1647
/ 631/337
/ 631/532
/ 631/57
/ 631/67
/ 631/80
/ 692/4017
/ 692/4028
/ 692/499
/ 692/53
/ 692/699
/ Adenocarcinoma in Situ - genetics
/ Adenocarcinoma in Situ - metabolism
/ Adenocarcinoma of Lung - genetics
/ Adenocarcinoma of Lung - metabolism
/ Epithelial-Mesenchymal Transition
/ Female
/ Humanities and Social Sciences
/ Humans
/ Male
/ Mitosis
/ Proteins
/ Science
/ Tumors
