For this purpose, we cultivated the SW620 cells either in RPMI+FBS or HPLM+FBS and then exposed them to the receptor tyrosine kinase inhibitor sunitinib (Suten, SU11248), which is currently used as a cancer therapy against renal cell carcinoma and gastrointestinal stromal tumor [28,29]. The gene discussed is NTRK1; the disease is hereditary clear cell renal cell carcinoma.