Establishment of an Immune-Related Gene Signature for Risk Stratification for Patients with Glioma

He, Jiaxue; Zeng, Chun; Long, Yong

doi:10.1155/2021/2191709

Cited by 2 publications

(1 citation statement)

References 106 publications

(105 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We constructed a miR-1 target gene PPI network (high confidence > 0:70) using the STRING 11.0 database and calculated the degree number by the Centiscape2.2 plugin of Cytoscape [22][23][24]. In the PPI network, the most highly connected genes were identified as hub genes.…”

Section: Disease Markersmentioning

confidence: 99%

Downregulation of MicroRNA-1 and Its Potential Molecular Mechanism in Nasopharyngeal Cancer: An Investigation Combined with In Silico and In-House Immunohistochemistry Validation

et al. 2022

View full text Add to dashboard Cite

Background. This study was aimed at elucidating the molecular biological mechanisms of microRNA-1 (miR-1) in nasopharyngeal carcinoma (NPC). Method. In this study, we performed a pooled analysis of miR-1 expression data derived from public databases, such as GEO, ArrayExpress, TCGA, and GTEx. The miRWalk 2.0 database, combined with the mRNA microarray datasets, was used to screen the target genes, and the genes were then subjected to Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) enrichment analysis using the DAVID 6.8 database. We then used the STRING 11.0 database and Cytoscape 3.80 software to construct a protein-protein interaction (PPI) network for screening hub genes. Immunohistochemistry (IHC) was further used to validate the expression of hub genes. Finally, potential therapeutic agents for NPC were screened by the Connectivity Map (cMap) database. Results. Pooled analysis showed that miR-1 expression was significantly decreased in NPC ( SMD = − 0.57 ; P < 0.05 ). The summary receiver operating characteristic curve suggested that miR-1 had a good ability to distinguish cancerous tissues from noncancerous tissues ( AUC = 0.78 ). The results of GO analysis focused on mitotic nuclear division, DNA replication, cell division, cell adhesion, extracellular space, kinesin complex, and extracellular matrix (ECM) structural constituent. The KEGG analysis suggested that the target genes played a role in key signaling pathways, such as cell cycle, focal adhesion, cytokine-cytokine receptor interaction, ECM-receptor interaction, and PI3K/Akt signaling pathway. The PPI network suggested that cyclin-dependent kinase 1 (CDK1) was the hub gene, and the CDK1 protein was subsequently confirmed to be significantly upregulated in NPC tissues by IHC. Finally, potential therapeutic drugs, such as masitinib, were obtained by the cMap database. Conclusion. miR-1 may play a vital part in NPC tumorigenesis and progression by regulating focal adhesion kinase to participate in cell mitosis, regulating ECM degradation, and affecting the PI3K/Akt signaling pathway. miR-1 has the potential to be a therapeutic target for NPC.

show abstract

Section: Disease Markersmentioning

confidence: 99%