*2.4. Serum BUN and Creatinine Measurements*

BUN and creatinine were measured in serum samples using the Catalyst One Analyzer Technology (IDEXX Laboratories, Westbrook, ME, USA).

**Figure 1.** Experimental schematic showing surgery and PrC-210 administration times for the BN rat kidney transplants into LEW rats. LT (**left**), RT (**right**), MTD (maximum tolerated dose), and IP (intraperitoneal).
