Furthermore, among patients with BLCA, the high SUMF2/high SULF1 and high SUMF2/high SULF2 groups were linked to a lower OS than the low SUMF2/low SULF1 and low SUMF2/low SULF2 groups, respectively (Fig. 5C). The gene discussed is SUMF2; the disease is bladder transitional cell carcinoma.