Urodilatin, a peptide formed in the kidney, has significant anticancer effects, eliminating two thirds of cancer cells within 24 hours Provided are methods for inhibiting the growth of cancer cells comprising contacting a target cancer cell, including a renal carcinoma cell, with urodilatin Further provided are methods for inhibiting the growth of cancer cells comprising contacting a target cancer cell, including a renal carcinoma cell, with a combination of peptide hormones derived from the atrial natriuretic peptide prohormoneLa présente concerne lurodilatine, un peptide formé dans le rein, présentant dimportants effets anti-cancéreux permettant déliminer deux-tiers de cellules cancéreuses en 24 heures.