Research and Clinical Significance of the Differentially Expressed Genes TP63 and LMO4 in Human Immunodeficiency Virus-related Penile Squamous Cell Carcinoma
Abstract Background: To study the differential gene expression and clinical significance in HIVIIs (human immunodeficiency virus-infected individuals) with penile squamous cell carcinoma.Methods: At our hospital from 2019 to 2020, we selected 6 samples of HIV-related penile squamous cell carcinoma for the experimental group and 6 samples of non-HIV-related penile squamous cell carcinoma for the control group. Transcriptome sequencing of sample mRNAs was performed by high-throughput sequencing. Differential gene expression analysis, differential GO (Gene Ontology) enrichment analysis and differential KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway analysis were carried out, and the RPKM (reads per kilobase per million reads) value was used as a measure of gene expression.Results: A total of 2418 differentially expressed genes were obtained, of which 663 were upregulated and 1755 were downregulated (absolute value of logFC >1.0 and p value<0.05 FDR < 0.05). On the basis of the significance of the GO enrichment analysis, we found that the TP63 (tumor protein p63) gene was significantly upregulated and that the LMO4 (LIM domain only 4) gene was significantly downregulated in the experimental group compared with the control group. KEGG pathway analysis of the differentially expressed genes revealed that DNA replication was the most significant pathway associated with the upregulated genes and CAM (cell adhesion molecule) metabolism was the most significant pathway associated with the downregulated genes.Conclusions: The gene expression profiles of HIV-related penile squamous cell carcinoma and non-HIV-related penile squamous cell carcinoma are significantly different and involve significant GO enrichment and KEGG metabolic pathways, and this is very meaningful for the study of NADCs (non-AIDS-defining cancers). Differential expression of genes may be an important target for the prevention of penile squamous cell carcinoma in HIVIIs.