SAMSN1 and neoplasm: However, the metastatic tumor burden in the non‐injected, contralateral hind leg was not reduced in NSG mice inoculated with 5TGM1‐Samsn1 cells compared to those inoculated with 5TGM1‐EV cells, as determined by flow cytometry (p = 0.4634, Mann–Whitney U test; Figure 6D).