MMP9 and nonpapillary renal cell carcinoma: The result of OS analysis revealed that ccRCC patients with high levels of G0S2 and MMP9 and low levels of CREB5, SELP, TLR7, CYBB, TLR8, MTOR, DYSF, SLC22A4, and KCNJ15 had a poor OS rate (Figure 6A and Table 1).