PTCSC3 and neoplasm: Correlation analysis in the TCGA-KIRC dataset revealed that RP11-528A4.2 was negatively correlated with patient age, LINC00645 was negatively correlated with tumor stage, PTCSC3 was positively correlated with gender, and AP000696.2 was positively correlated with tumor stage, T stage, and M stage (Fig. 5c).