As an assessment of function, the same sIL15_TRACK NK cells that were isolated from the lung skinny needle biopsy of patient 006 within 24 hours following the final infusion were cocultured for 4 hours in vitro alongside the standard NK cell target tumor cell line K562, demonstrating cytolytic granule exocytosis by CD107a staining (Figure 4). This evidence concerns the gene LAMP1 and neoplasm.