- Effects of suramin on metastatic ability, proliferation, and production of urokinase-type plasminogen activator and plasminogen activator inhibitor type 2 in human renal cell carcinoma cell line SN12C-PM6. Marutsuka, K., Hasui, Y., Asada, Y., Naito, S., Osada, Y., Sumiyoshi, A. Clin. Exp. Metastasis (1995)