Identification of Key Genes in Lung Adenocarcinoma and Establishment of Prognostic Mode

Frontiers in Molecular Biosciences
Zhou JiaweiHu Dong

Abstract

The development of human tumors is associated with the abnormal expression of various functional genes, and a massive tumor-based database needs to be deeply mined. Based on a multigene prediction model, access to urgent prognosis of patients has become possible. We selected three RNA expression profiles (GSE32863, GSE10072, and GSE43458) from the lung adenocarcinoma (LUAD) database of the Gene Expression Omnibus (GEO) and analyzed the differentially expressed genes (DEGs) between tumor and normal tissue using GEO2R program. After that, we analyzed the transcriptome data of 479 LUAD samples (54 normal tissue samples and 425 cancer tissue samples) and their clinical follow-up data from the (TCGA) database. Kaplan-Meier (KM) curve and receiver operating characteristic (ROC) were used to assess the prediction model. Multivariate Cox analysis was used to identify independent predictors. TCGA pancreatic adenocarcinoma datasets were used to establish a nomogram model. We found 98 significantly prognosis-related genes using KM and COX analysis, among which six genes were found to be the DEGs in GEO. Using multivariate analysis, it was found that a single gene could not be used as an independent predictor of prognosis. However, the ris...Continue Reading

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Datasets Mentioned

BETA
GSE43458
GSE10072
GSE32863

Methods Mentioned

BETA
chip

Software Mentioned

GEO2R
GEPIA
R
GEO
GraphPad Prism
GraphPad
R ( bee swarm )
R language

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