PELI1 and neoplasm: After undergoing effective radiation therapy, tumor apoptosis was detected by the 18F‐ML‐10 PET/CT scan, and the WT mice showed much higher 18F‐ML‐10 uptake than did the Peli1‐deficient mice (0.31 ± 0.01 vs 0.22 ± 0.01, P = 0.002) (Fig. 2D,E).