ASS1 and nonpapillary renal cell carcinoma: lncRNA 00312 is mainly located in the cytoplasm of ccRCC cells and may act as an competing endogenous RNA binding to MicroRNA, thus eliminating the repressive effect of MicroRNA on target gene transcripts, and lncRNA 00312 inhibits ccRCC proliferation and invasion and promotes apoptosis by downregulating ASS1 expression through the miR-34a-5p/ASS1 axis 84.