In addition, Samsn1 expression did not inhibit the growth of 5TGM1 cells following i.v. injection into NSG mice, as measured by whole animal BLI (p = 0.9108, Mann–Whitney U test; Figure 7A) and serum protein electrophoresis (SPEP) quantitation of the M‐spike (monoclonal antibody secreted by the tumor cells) (p = 0.3095, Mann–Whitney U test; Figure 7B). This evidence concerns the gene SAMSN1 and neoplasm.