Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis were performed using Database for Annotation, Visualization and Integrated Discovery (DAVID). 
DAVID
The Gene Expression Profiling Interactive Analysis (GEPIA) was further performed in order to valid the mRNA levels of top5 up-regulated and top5 down-regualted DEGs, apart from exploring their association with survival rate as well as tumor stage. 
GEPIA
Mathematical biosciences and engineering : MBE
D000230:Adenocarcinoma; D014408:Biomarkers, Tumor; D045744:Cell Line, Tumor; D019295:Computational Biology; D020869:Gene Expression Profiling; D015972:Gene Expression Regulation, Neoplastic; D063990:Gene Ontology; D053263:Gene Regulatory Networks; D006801:Humans; D008297:Male; D010190:Pancreatic Neoplasms; D011379:Prognosis; D060066:Protein Interaction Maps; D015398:Signal Transduction; D059467:Transcriptome
Li Yan Y ;Zhu Yux Yuzhang YY ;Dai Gui Ping GP ;Wu Dong Juan DJ ;Gao Zhen Zhen ZZ ;Zhang Lei L ;Fan Yao Hua YH 