VPS4A and neoplasm: In order to have a further understanding of the relationship between the expression of the VPS4 gene and tumor, we downloaded the unified and standardized pan-cancer data set from the UCSC (83) database: TCGA TARGET GTEx (PANCAN, N=19131, G=60499), and further we extracted ENSG00000132612 (VPS4A) and ENSG00000119541(VPS4B) gene expression data in each sample.