International Journal of General Medicine (Mar 2022)
Bioinformatic Analysis of Prognostic Value of Pyroptosis-Related Genes and Its Effect on Immune Cell Infiltration in Pancreatic Adenocarcinoma
Abstract
Jian Wang,* Hui Zhang,* Peng Shao, Xu Zhang, Bin Zhou Department of General Surgery, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, People’s Republic of China*These authors contributed equally to this workCorrespondence: Xu Zhang; Bin Zhou, Tel/Fax +86-25-83284735, Email [email protected]; [email protected]: Pancreatic adenocarcinoma has a poor prognosis and chemotherapy has its limitation due to tumor heterogeneity. It is essential to find novel targets involving in tumorigenesis of pancreatic adenocarcinoma. Growing evidences indicated that pyroptosis is involved in tumorigenesis of many cancers, but the relationship between pyroptosis and pancreatic adenocarcinoma still remains to be elucidated. Our object is to explore whether pyroptosis-related different expression genes have association with survivals of pancreatic adenocarcinoma patients and the mechanism they may participate in. Besides, we also analyzed their effect on immune cell infiltration in tumor microenvironment.Patients and Methods: We used the bioinformatic analysis tool including GEPIA, cBioPortal, STRING, GeneMANIA, R software 4.03 and TIMER2.0 to investigate the different expression, prognostic value, protein-protein interaction, gene ontology, pathway and effect of immune cell infiltration of pyroptosis-related genes in PAAD.Results: Many pyroptosis-related genes express differently between pancreatic adenocarcinoma and normal tissues and they are associated with survival of PAAD. GABARAP and IL18 may play a key role in tumorigenesis of PAAD, for they are connected with overall survival, disease free survival and pathological stages at the same time. The function of pyroptosis-related genes includes cytokine production, endopeptidase activity, regulation of inflammation and inflammasome complex and pyroptosis-related genes have effect on immune cells infiltration in PAAD microenvironment.Conclusion: Lots of pyroptosis-related DEGs may get involved in pathogenesis of PAAD and their high expression have an effect on survival. GABARAP and IL18 could be valuable research targets of PAAD.Keywords: pyroptosis, pyroptosis-related gene, pancreatic adenocarcinoma, immune cell, microenvironment
