Patienter behandlet med kemoterapi og/ eller strålingsterapi er dog udsat for højere risiko for at udvikle sekundære tumorer, hvoraf visse kan udtrykke KGF- receptorer og teoretisk kan stimuleres af KGF- receptorligander.
However, patients treated with chemotherapy and/ or radiotherapy are at higher risk of developing secondary tumours some of which may express KGF receptors, and theoretically, be stimulated by KGF receptor ligands.