Israeli biotech ExoProTher is developing an anti-cancer therapy using protein generated from the p53 gene in the corneas of chickens. The foreign protein binds to cancerous human p53 protein, destroying tumors without side effects. The cornea is highly cancer resistant and full of p53 protein.
https://nocamels.com/2023/08/new-protein-based-cancer-drug-does-not-affect-healthy-cells/