Differences in the early stage gene expression profiles of lung adenocarcinoma and lung squamous cell carcinoma.

Differences in the early stage gene expression profiles of lung adenocarcinoma and lung squamous cell carcinoma. Oncol Lett. 2019 Dec;18(6):6572-6582 Authors: Venugopal N, Yeh J, Kodeboyina SK, Lee TJ, Sharma S, Patel N, Sharma A Abstract The discovery of lung carcinoma subtype-specific gene expression changes has the potential to elucidate the molecular differences and provide personalized therapeutic targets for these pathologies. The aim of the present study was to characterize the genetic profiles of the early stages (IA/IB) of two non-small cell lung cancer subtypes, adenocarcinoma (AD) and squamous cell carcinoma (SC). RNA-Seq gene expression data from The Cancer Genome Atlas was analyzed to compare the gene expression differences between AD and SC. The gene sets specific to each subtype were further analyzed to identify the enriched Gene Ontology terms, Kyoto Encyclopedia of Genes and Genomes pathways and biological functions. The results demonstrated that a unique set of genes (145 upregulated and 27 downregulated) was altered in AD, but not in SC; another set of genes (146 upregulated and 103 downregulated) was significantly altered in SC, but not in AD. Genes highly upregulated specifically in AD included albumin (1,732-fold), protein lin-28 homolog A, which is a positive regulator of cyclin-dependent kinase 2 (150-fold) and gastric lipase (81-fold). Genes highly upregulated specifically in SC included amelotin (618-fold), ...
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research